4 * Copyright (C) 1999 - 2001
5 * Greg Kroah-Hartman (greg@kroah.com)
6 * Bill Ryder (bryder@sgi.com)
8 * Kuba Ober (kuba@mareimbrium.org)
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either version 2 of the License, or
13 * (at your option) any later version.
15 * See Documentation/usb/usb-serial.txt for more information on using this
18 * See http://ftdi-usb-sio.sourceforge.net for upto date testing info
19 * and extra documentation
21 * Change entries from 2004 and earlier can be found in versions of this
22 * file in kernel versions prior to the 2.6.24 release.
26 /* Bill Ryder - bryder@sgi.com - wrote the FTDI_SIO implementation */
27 /* Thanx to FTDI for so kindly providing details of the protocol required */
28 /* to talk to the device */
29 /* Thanx to gkh and the rest of the usb dev group for all code I have
32 #include <linux/kernel.h>
33 #include <linux/errno.h>
34 #include <linux/init.h>
35 #include <linux/slab.h>
36 #include <linux/tty.h>
37 #include <linux/tty_driver.h>
38 #include <linux/tty_flip.h>
39 #include <linux/module.h>
40 #include <linux/spinlock.h>
41 #include <linux/uaccess.h>
42 #include <linux/usb.h>
43 #include <linux/serial.h>
44 #include <linux/usb/serial.h>
50 #define DRIVER_VERSION "v1.5.0"
51 #define DRIVER_AUTHOR "Greg Kroah-Hartman <greg@kroah.com>, Bill Ryder <bryder@sgi.com>, Kuba Ober <kuba@mareimbrium.org>"
52 #define DRIVER_DESC "USB FTDI Serial Converters Driver"
55 static __u16 vendor = FTDI_VID;
60 ftdi_chip_type_t chip_type;
61 /* type of device, either SIO or FT8U232AM */
62 int baud_base; /* baud base clock for divisor setting */
63 int custom_divisor; /* custom_divisor kludge, this is for
64 baud_base (different from what goes to the
66 __u16 last_set_data_urb_value ;
67 /* the last data state set - needed for doing
70 int write_offset; /* This is the offset in the usb data block to
71 * write the serial data - it varies between
74 int flags; /* some ASYNC_xxxx flags are supported */
75 unsigned long last_dtr_rts; /* saved modem control outputs */
76 wait_queue_head_t delta_msr_wait; /* Used for TIOCMIWAIT */
77 char prev_status, diff_status; /* Used for TIOCMIWAIT */
78 __u8 rx_flags; /* receive state flags (throttling) */
79 spinlock_t rx_lock; /* spinlock for receive state */
80 struct delayed_work rx_work;
81 struct usb_serial_port *port;
83 unsigned long rx_bytes;
85 __u16 interface; /* FT2232C, FT2232H or FT4232H port interface
88 speed_t force_baud; /* if non-zero, force the baud rate to
90 int force_rtscts; /* if non-zero, force RTS-CTS to always
93 unsigned int latency; /* latency setting in use */
94 spinlock_t tx_lock; /* spinlock for transmit state */
95 unsigned long tx_bytes;
96 unsigned long tx_outstanding_bytes;
97 unsigned long tx_outstanding_urbs;
98 unsigned short max_packet_size;
101 /* struct ftdi_sio_quirk is used by devices requiring special attention. */
102 struct ftdi_sio_quirk {
103 int (*probe)(struct usb_serial *);
104 /* Special settings for probed ports. */
105 void (*port_probe)(struct ftdi_private *);
108 static int ftdi_jtag_probe(struct usb_serial *serial);
109 static int ftdi_mtxorb_hack_setup(struct usb_serial *serial);
110 static void ftdi_USB_UIRT_setup(struct ftdi_private *priv);
111 static void ftdi_HE_TIRA1_setup(struct ftdi_private *priv);
113 static struct ftdi_sio_quirk ftdi_jtag_quirk = {
114 .probe = ftdi_jtag_probe,
117 static struct ftdi_sio_quirk ftdi_mtxorb_hack_quirk = {
118 .probe = ftdi_mtxorb_hack_setup,
121 static struct ftdi_sio_quirk ftdi_USB_UIRT_quirk = {
122 .port_probe = ftdi_USB_UIRT_setup,
125 static struct ftdi_sio_quirk ftdi_HE_TIRA1_quirk = {
126 .port_probe = ftdi_HE_TIRA1_setup,
130 * The 8U232AM has the same API as the sio except for:
131 * - it can support MUCH higher baudrates; up to:
132 * o 921600 for RS232 and 2000000 for RS422/485 at 48MHz
134 * so .. 8U232AM's baudrate setting codes are different
135 * - it has a two byte status code.
136 * - it returns characters every 16ms (the FTDI does it every 40ms)
138 * the bcdDevice value is used to differentiate FT232BM and FT245BM from
139 * the earlier FT8U232AM and FT8U232BM. For now, include all known VID/PID
140 * combinations in both tables.
141 * FIXME: perhaps bcdDevice can also identify 12MHz FT8U232AM devices,
142 * but I don't know if those ever went into mass production. [Ian Abbott]
147 static struct usb_device_id id_table_combined [] = {
148 { USB_DEVICE(FTDI_VID, FTDI_AMC232_PID) },
149 { USB_DEVICE(FTDI_VID, FTDI_CANUSB_PID) },
150 { USB_DEVICE(FTDI_VID, FTDI_CANDAPTER_PID) },
151 { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_0_PID) },
152 { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_1_PID) },
153 { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_2_PID) },
154 { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_3_PID) },
155 { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_4_PID) },
156 { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_5_PID) },
157 { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_6_PID) },
158 { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_7_PID) },
159 { USB_DEVICE(FTDI_VID, FTDI_ACTZWAVE_PID) },
160 { USB_DEVICE(FTDI_VID, FTDI_IRTRANS_PID) },
161 { USB_DEVICE(FTDI_VID, FTDI_IPLUS_PID) },
162 { USB_DEVICE(FTDI_VID, FTDI_IPLUS2_PID) },
163 { USB_DEVICE(FTDI_VID, FTDI_DMX4ALL) },
164 { USB_DEVICE(FTDI_VID, FTDI_SIO_PID) },
165 { USB_DEVICE(FTDI_VID, FTDI_8U232AM_PID) },
166 { USB_DEVICE(FTDI_VID, FTDI_8U232AM_ALT_PID) },
167 { USB_DEVICE(FTDI_VID, FTDI_232RL_PID) },
168 { USB_DEVICE(FTDI_VID, FTDI_8U2232C_PID) },
169 { USB_DEVICE(FTDI_VID, FTDI_4232H_PID) },
170 { USB_DEVICE(FTDI_VID, FTDI_MICRO_CHAMELEON_PID) },
171 { USB_DEVICE(FTDI_VID, FTDI_RELAIS_PID) },
172 { USB_DEVICE(FTDI_VID, FTDI_OPENDCC_PID) },
173 { USB_DEVICE(INTERBIOMETRICS_VID, INTERBIOMETRICS_IOBOARD_PID) },
174 { USB_DEVICE(INTERBIOMETRICS_VID, INTERBIOMETRICS_MINI_IOBOARD_PID) },
175 { USB_DEVICE(FTDI_VID, FTDI_SPROG_II) },
176 { USB_DEVICE(FTDI_VID, FTDI_XF_632_PID) },
177 { USB_DEVICE(FTDI_VID, FTDI_XF_634_PID) },
178 { USB_DEVICE(FTDI_VID, FTDI_XF_547_PID) },
179 { USB_DEVICE(FTDI_VID, FTDI_XF_633_PID) },
180 { USB_DEVICE(FTDI_VID, FTDI_XF_631_PID) },
181 { USB_DEVICE(FTDI_VID, FTDI_XF_635_PID) },
182 { USB_DEVICE(FTDI_VID, FTDI_XF_640_PID) },
183 { USB_DEVICE(FTDI_VID, FTDI_XF_642_PID) },
184 { USB_DEVICE(FTDI_VID, FTDI_DSS20_PID) },
185 { USB_DEVICE(FTDI_NF_RIC_VID, FTDI_NF_RIC_PID) },
186 { USB_DEVICE(FTDI_VID, FTDI_VNHCPCUSB_D_PID) },
187 { USB_DEVICE(FTDI_VID, FTDI_MTXORB_0_PID) },
188 { USB_DEVICE(FTDI_VID, FTDI_MTXORB_1_PID) },
189 { USB_DEVICE(FTDI_VID, FTDI_MTXORB_2_PID) },
190 { USB_DEVICE(FTDI_VID, FTDI_MTXORB_3_PID) },
191 { USB_DEVICE(FTDI_VID, FTDI_MTXORB_4_PID) },
192 { USB_DEVICE(FTDI_VID, FTDI_MTXORB_5_PID) },
193 { USB_DEVICE(FTDI_VID, FTDI_MTXORB_6_PID) },
194 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0100_PID) },
195 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0101_PID) },
196 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0102_PID) },
197 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0103_PID) },
198 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0104_PID) },
199 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0105_PID) },
200 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0106_PID) },
201 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0107_PID) },
202 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0108_PID) },
203 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0109_PID) },
204 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_010A_PID) },
205 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_010B_PID) },
206 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_010C_PID) },
207 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_010D_PID) },
208 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_010E_PID) },
209 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_010F_PID) },
210 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0110_PID) },
211 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0111_PID) },
212 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0112_PID) },
213 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0113_PID) },
214 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0114_PID) },
215 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0115_PID) },
216 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0116_PID) },
217 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0117_PID) },
218 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0118_PID) },
219 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0119_PID) },
220 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_011A_PID) },
221 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_011B_PID) },
222 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_011C_PID) },
223 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_011D_PID) },
224 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_011E_PID) },
225 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_011F_PID) },
226 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0120_PID) },
227 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0121_PID) },
228 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0122_PID) },
229 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0123_PID) },
230 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0124_PID) },
231 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0125_PID) },
232 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0126_PID) },
233 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0127_PID),
234 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk },
235 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0128_PID) },
236 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0129_PID) },
237 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_012A_PID) },
238 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_012B_PID) },
239 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_012C_PID),
240 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk },
241 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_012D_PID) },
242 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_012E_PID) },
243 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_012F_PID) },
244 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0130_PID) },
245 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0131_PID) },
246 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0132_PID) },
247 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0133_PID) },
248 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0134_PID) },
249 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0135_PID) },
250 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0136_PID) },
251 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0137_PID) },
252 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0138_PID) },
253 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0139_PID) },
254 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_013A_PID) },
255 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_013B_PID) },
256 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_013C_PID) },
257 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_013D_PID) },
258 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_013E_PID) },
259 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_013F_PID) },
260 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0140_PID) },
261 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0141_PID) },
262 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0142_PID) },
263 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0143_PID) },
264 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0144_PID) },
265 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0145_PID) },
266 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0146_PID) },
267 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0147_PID) },
268 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0148_PID) },
269 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0149_PID) },
270 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_014A_PID) },
271 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_014B_PID) },
272 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_014C_PID) },
273 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_014D_PID) },
274 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_014E_PID) },
275 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_014F_PID) },
276 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0150_PID) },
277 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0151_PID) },
278 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0152_PID) },
279 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0153_PID),
280 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk },
281 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0154_PID),
282 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk },
283 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0155_PID),
284 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk },
285 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0156_PID),
286 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk },
287 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0157_PID),
288 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk },
289 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0158_PID),
290 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk },
291 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0159_PID) },
292 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_015A_PID) },
293 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_015B_PID) },
294 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_015C_PID) },
295 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_015D_PID) },
296 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_015E_PID) },
297 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_015F_PID) },
298 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0160_PID) },
299 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0161_PID) },
300 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0162_PID) },
301 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0163_PID) },
302 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0164_PID) },
303 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0165_PID) },
304 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0166_PID) },
305 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0167_PID) },
306 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0168_PID) },
307 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0169_PID) },
308 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_016A_PID) },
309 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_016B_PID) },
310 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_016C_PID) },
311 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_016D_PID) },
312 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_016E_PID) },
313 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_016F_PID) },
314 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0170_PID) },
315 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0171_PID) },
316 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0172_PID) },
317 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0173_PID) },
318 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0174_PID) },
319 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0175_PID) },
320 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0176_PID) },
321 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0177_PID) },
322 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0178_PID) },
323 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0179_PID) },
324 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_017A_PID) },
325 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_017B_PID) },
326 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_017C_PID) },
327 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_017D_PID) },
328 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_017E_PID) },
329 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_017F_PID) },
330 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0180_PID) },
331 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0181_PID) },
332 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0182_PID) },
333 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0183_PID) },
334 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0184_PID) },
335 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0185_PID) },
336 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0186_PID) },
337 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0187_PID) },
338 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0188_PID) },
339 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0189_PID) },
340 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_018A_PID) },
341 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_018B_PID) },
342 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_018C_PID) },
343 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_018D_PID) },
344 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_018E_PID) },
345 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_018F_PID) },
346 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0190_PID) },
347 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0191_PID) },
348 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0192_PID) },
349 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0193_PID) },
350 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0194_PID) },
351 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0195_PID) },
352 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0196_PID) },
353 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0197_PID) },
354 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0198_PID) },
355 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0199_PID) },
356 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_019A_PID) },
357 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_019B_PID) },
358 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_019C_PID) },
359 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_019D_PID) },
360 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_019E_PID) },
361 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_019F_PID) },
362 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A0_PID) },
363 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A1_PID) },
364 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A2_PID) },
365 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A3_PID) },
366 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A4_PID) },
367 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A5_PID) },
368 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A6_PID) },
369 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A7_PID) },
370 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A8_PID) },
371 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A9_PID) },
372 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01AA_PID) },
373 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01AB_PID) },
374 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01AC_PID) },
375 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01AD_PID) },
376 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01AE_PID) },
377 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01AF_PID) },
378 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B0_PID) },
379 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B1_PID) },
380 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B2_PID) },
381 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B3_PID) },
382 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B4_PID) },
383 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B5_PID) },
384 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B6_PID) },
385 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B7_PID) },
386 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B8_PID) },
387 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B9_PID) },
388 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01BA_PID) },
389 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01BB_PID) },
390 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01BC_PID) },
391 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01BD_PID) },
392 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01BE_PID) },
393 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01BF_PID) },
394 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C0_PID) },
395 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C1_PID) },
396 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C2_PID) },
397 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C3_PID) },
398 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C4_PID) },
399 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C5_PID) },
400 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C6_PID) },
401 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C7_PID) },
402 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C8_PID) },
403 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C9_PID) },
404 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01CA_PID) },
405 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01CB_PID) },
406 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01CC_PID) },
407 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01CD_PID) },
408 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01CE_PID) },
409 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01CF_PID) },
410 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D0_PID) },
411 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D1_PID) },
412 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D2_PID) },
413 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D3_PID) },
414 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D4_PID) },
415 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D5_PID) },
416 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D6_PID) },
417 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D7_PID) },
418 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D8_PID) },
419 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D9_PID) },
420 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01DA_PID) },
421 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01DB_PID) },
422 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01DC_PID) },
423 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01DD_PID) },
424 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01DE_PID) },
425 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01DF_PID) },
426 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E0_PID) },
427 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E1_PID) },
428 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E2_PID) },
429 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E3_PID) },
430 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E4_PID) },
431 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E5_PID) },
432 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E6_PID) },
433 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E7_PID) },
434 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E8_PID) },
435 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E9_PID) },
436 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01EA_PID) },
437 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01EB_PID) },
438 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01EC_PID) },
439 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01ED_PID) },
440 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01EE_PID) },
441 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01EF_PID) },
442 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F0_PID) },
443 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F1_PID) },
444 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F2_PID) },
445 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F3_PID) },
446 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F4_PID) },
447 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F5_PID) },
448 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F6_PID) },
449 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F7_PID) },
450 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F8_PID) },
451 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F9_PID) },
452 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01FA_PID) },
453 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01FB_PID) },
454 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01FC_PID) },
455 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01FD_PID) },
456 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01FE_PID) },
457 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01FF_PID) },
458 { USB_DEVICE(FTDI_VID, FTDI_PERLE_ULTRAPORT_PID) },
459 { USB_DEVICE(FTDI_VID, FTDI_PIEGROUP_PID) },
460 { USB_DEVICE(FTDI_VID, FTDI_TNC_X_PID) },
461 { USB_DEVICE(FTDI_VID, FTDI_USBX_707_PID) },
462 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2101_PID) },
463 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2102_PID) },
464 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2103_PID) },
465 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2104_PID) },
466 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2106_PID) },
467 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2201_1_PID) },
468 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2201_2_PID) },
469 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2202_1_PID) },
470 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2202_2_PID) },
471 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2203_1_PID) },
472 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2203_2_PID) },
473 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2401_1_PID) },
474 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2401_2_PID) },
475 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2401_3_PID) },
476 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2401_4_PID) },
477 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2402_1_PID) },
478 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2402_2_PID) },
479 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2402_3_PID) },
480 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2402_4_PID) },
481 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2403_1_PID) },
482 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2403_2_PID) },
483 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2403_3_PID) },
484 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2403_4_PID) },
485 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_1_PID) },
486 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_2_PID) },
487 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_3_PID) },
488 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_4_PID) },
489 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_5_PID) },
490 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_6_PID) },
491 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_7_PID) },
492 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_8_PID) },
493 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_1_PID) },
494 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_2_PID) },
495 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_3_PID) },
496 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_4_PID) },
497 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_5_PID) },
498 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_6_PID) },
499 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_7_PID) },
500 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_8_PID) },
501 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_1_PID) },
502 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_2_PID) },
503 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_3_PID) },
504 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_4_PID) },
505 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_5_PID) },
506 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_6_PID) },
507 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_7_PID) },
508 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_8_PID) },
509 { USB_DEVICE(IDTECH_VID, IDTECH_IDT1221U_PID) },
510 { USB_DEVICE(OCT_VID, OCT_US101_PID) },
511 { USB_DEVICE(FTDI_VID, FTDI_HE_TIRA1_PID),
512 .driver_info = (kernel_ulong_t)&ftdi_HE_TIRA1_quirk },
513 { USB_DEVICE(FTDI_VID, FTDI_USB_UIRT_PID),
514 .driver_info = (kernel_ulong_t)&ftdi_USB_UIRT_quirk },
515 { USB_DEVICE(FTDI_VID, PROTEGO_SPECIAL_1) },
516 { USB_DEVICE(FTDI_VID, PROTEGO_R2X0) },
517 { USB_DEVICE(FTDI_VID, PROTEGO_SPECIAL_3) },
518 { USB_DEVICE(FTDI_VID, PROTEGO_SPECIAL_4) },
519 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E808_PID) },
520 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E809_PID) },
521 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E80A_PID) },
522 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E80B_PID) },
523 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E80C_PID) },
524 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E80D_PID) },
525 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E80E_PID) },
526 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E80F_PID) },
527 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E888_PID) },
528 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E889_PID) },
529 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E88A_PID) },
530 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E88B_PID) },
531 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E88C_PID) },
532 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E88D_PID) },
533 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E88E_PID) },
534 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E88F_PID) },
535 { USB_DEVICE(FTDI_VID, FTDI_ELV_UO100_PID) },
536 { USB_DEVICE(FTDI_VID, FTDI_ELV_UM100_PID) },
537 { USB_DEVICE(FTDI_VID, FTDI_ELV_UR100_PID) },
538 { USB_DEVICE(FTDI_VID, FTDI_ELV_ALC8500_PID) },
539 { USB_DEVICE(FTDI_VID, FTDI_PYRAMID_PID) },
540 { USB_DEVICE(FTDI_VID, FTDI_ELV_FHZ1000PC_PID) },
541 { USB_DEVICE(FTDI_VID, FTDI_IBS_US485_PID) },
542 { USB_DEVICE(FTDI_VID, FTDI_IBS_PICPRO_PID) },
543 { USB_DEVICE(FTDI_VID, FTDI_IBS_PCMCIA_PID) },
544 { USB_DEVICE(FTDI_VID, FTDI_IBS_PK1_PID) },
545 { USB_DEVICE(FTDI_VID, FTDI_IBS_RS232MON_PID) },
546 { USB_DEVICE(FTDI_VID, FTDI_IBS_APP70_PID) },
547 { USB_DEVICE(FTDI_VID, FTDI_IBS_PEDO_PID) },
548 { USB_DEVICE(FTDI_VID, FTDI_IBS_PROD_PID) },
550 * Due to many user requests for multiple ELV devices we enable
553 { USB_DEVICE(FTDI_VID, FTDI_ELV_CLI7000_PID) },
554 { USB_DEVICE(FTDI_VID, FTDI_ELV_PPS7330_PID) },
555 { USB_DEVICE(FTDI_VID, FTDI_ELV_TFM100_PID) },
556 { USB_DEVICE(FTDI_VID, FTDI_ELV_UDF77_PID) },
557 { USB_DEVICE(FTDI_VID, FTDI_ELV_UIO88_PID) },
558 { USB_DEVICE(FTDI_VID, FTDI_ELV_UAD8_PID) },
559 { USB_DEVICE(FTDI_VID, FTDI_ELV_UDA7_PID) },
560 { USB_DEVICE(FTDI_VID, FTDI_ELV_USI2_PID) },
561 { USB_DEVICE(FTDI_VID, FTDI_ELV_T1100_PID) },
562 { USB_DEVICE(FTDI_VID, FTDI_ELV_PCD200_PID) },
563 { USB_DEVICE(FTDI_VID, FTDI_ELV_ULA200_PID) },
564 { USB_DEVICE(FTDI_VID, FTDI_ELV_CSI8_PID) },
565 { USB_DEVICE(FTDI_VID, FTDI_ELV_EM1000DL_PID) },
566 { USB_DEVICE(FTDI_VID, FTDI_ELV_PCK100_PID) },
567 { USB_DEVICE(FTDI_VID, FTDI_ELV_RFP500_PID) },
568 { USB_DEVICE(FTDI_VID, FTDI_ELV_FS20SIG_PID) },
569 { USB_DEVICE(FTDI_VID, FTDI_ELV_WS300PC_PID) },
570 { USB_DEVICE(FTDI_VID, FTDI_ELV_FHZ1300PC_PID) },
571 { USB_DEVICE(FTDI_VID, FTDI_ELV_EM1010PC_PID) },
572 { USB_DEVICE(FTDI_VID, FTDI_ELV_WS500_PID) },
573 { USB_DEVICE(FTDI_VID, FTDI_ELV_HS485_PID) },
574 { USB_DEVICE(FTDI_VID, LINX_SDMUSBQSS_PID) },
575 { USB_DEVICE(FTDI_VID, LINX_MASTERDEVEL2_PID) },
576 { USB_DEVICE(FTDI_VID, LINX_FUTURE_0_PID) },
577 { USB_DEVICE(FTDI_VID, LINX_FUTURE_1_PID) },
578 { USB_DEVICE(FTDI_VID, LINX_FUTURE_2_PID) },
579 { USB_DEVICE(FTDI_VID, FTDI_CCSICDU20_0_PID) },
580 { USB_DEVICE(FTDI_VID, FTDI_CCSICDU40_1_PID) },
581 { USB_DEVICE(FTDI_VID, FTDI_CCSMACHX_2_PID) },
582 { USB_DEVICE(FTDI_VID, INSIDE_ACCESSO) },
583 { USB_DEVICE(INTREPID_VID, INTREPID_VALUECAN_PID) },
584 { USB_DEVICE(INTREPID_VID, INTREPID_NEOVI_PID) },
585 { USB_DEVICE(FALCOM_VID, FALCOM_TWIST_PID) },
586 { USB_DEVICE(FALCOM_VID, FALCOM_SAMBA_PID) },
587 { USB_DEVICE(FTDI_VID, FTDI_SUUNTO_SPORTS_PID) },
588 { USB_DEVICE(FTDI_VID, FTDI_OCEANIC_PID) },
589 { USB_DEVICE(TTI_VID, TTI_QL355P_PID) },
590 { USB_DEVICE(FTDI_VID, FTDI_RM_CANVIEW_PID) },
591 { USB_DEVICE(BANDB_VID, BANDB_USOTL4_PID) },
592 { USB_DEVICE(BANDB_VID, BANDB_USTL4_PID) },
593 { USB_DEVICE(BANDB_VID, BANDB_USO9ML2_PID) },
594 { USB_DEVICE(FTDI_VID, EVER_ECO_PRO_CDS) },
595 { USB_DEVICE(FTDI_VID, FTDI_4N_GALAXY_DE_1_PID) },
596 { USB_DEVICE(FTDI_VID, FTDI_4N_GALAXY_DE_2_PID) },
597 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_0_PID) },
598 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_1_PID) },
599 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_2_PID) },
600 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_3_PID) },
601 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_4_PID) },
602 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_5_PID) },
603 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_6_PID) },
604 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_7_PID) },
605 { USB_DEVICE(MOBILITY_VID, MOBILITY_USB_SERIAL_PID) },
606 { USB_DEVICE(FTDI_VID, FTDI_ACTIVE_ROBOTS_PID) },
607 { USB_DEVICE(FTDI_VID, FTDI_MHAM_KW_PID) },
608 { USB_DEVICE(FTDI_VID, FTDI_MHAM_YS_PID) },
609 { USB_DEVICE(FTDI_VID, FTDI_MHAM_Y6_PID) },
610 { USB_DEVICE(FTDI_VID, FTDI_MHAM_Y8_PID) },
611 { USB_DEVICE(FTDI_VID, FTDI_MHAM_IC_PID) },
612 { USB_DEVICE(FTDI_VID, FTDI_MHAM_DB9_PID) },
613 { USB_DEVICE(FTDI_VID, FTDI_MHAM_RS232_PID) },
614 { USB_DEVICE(FTDI_VID, FTDI_MHAM_Y9_PID) },
615 { USB_DEVICE(FTDI_VID, FTDI_TERATRONIK_VCP_PID) },
616 { USB_DEVICE(FTDI_VID, FTDI_TERATRONIK_D2XX_PID) },
617 { USB_DEVICE(EVOLUTION_VID, EVOLUTION_ER1_PID) },
618 { USB_DEVICE(EVOLUTION_VID, EVO_HYBRID_PID) },
619 { USB_DEVICE(EVOLUTION_VID, EVO_RCM4_PID) },
620 { USB_DEVICE(FTDI_VID, FTDI_ARTEMIS_PID) },
621 { USB_DEVICE(FTDI_VID, FTDI_ATIK_ATK16_PID) },
622 { USB_DEVICE(FTDI_VID, FTDI_ATIK_ATK16C_PID) },
623 { USB_DEVICE(FTDI_VID, FTDI_ATIK_ATK16HR_PID) },
624 { USB_DEVICE(FTDI_VID, FTDI_ATIK_ATK16HRC_PID) },
625 { USB_DEVICE(FTDI_VID, FTDI_ATIK_ATK16IC_PID) },
626 { USB_DEVICE(KOBIL_VID, KOBIL_CONV_B1_PID) },
627 { USB_DEVICE(KOBIL_VID, KOBIL_CONV_KAAN_PID) },
628 { USB_DEVICE(POSIFLEX_VID, POSIFLEX_PP7000_PID) },
629 { USB_DEVICE(FTDI_VID, FTDI_TTUSB_PID) },
630 { USB_DEVICE(FTDI_VID, FTDI_ECLO_COM_1WIRE_PID) },
631 { USB_DEVICE(FTDI_VID, FTDI_WESTREX_MODEL_777_PID) },
632 { USB_DEVICE(FTDI_VID, FTDI_WESTREX_MODEL_8900F_PID) },
633 { USB_DEVICE(FTDI_VID, FTDI_PCDJ_DAC2_PID) },
634 { USB_DEVICE(FTDI_VID, FTDI_RRCIRKITS_LOCOBUFFER_PID) },
635 { USB_DEVICE(FTDI_VID, FTDI_ASK_RDR400_PID) },
636 { USB_DEVICE(ICOM_ID1_VID, ICOM_ID1_PID) },
637 { USB_DEVICE(PAPOUCH_VID, PAPOUCH_TMU_PID) },
638 { USB_DEVICE(FTDI_VID, FTDI_ACG_HFDUAL_PID) },
639 { USB_DEVICE(FTDI_VID, FTDI_YEI_SERVOCENTER31_PID) },
640 { USB_DEVICE(FTDI_VID, FTDI_THORLABS_PID) },
641 { USB_DEVICE(TESTO_VID, TESTO_USB_INTERFACE_PID) },
642 { USB_DEVICE(FTDI_VID, FTDI_GAMMA_SCOUT_PID) },
643 { USB_DEVICE(FTDI_VID, FTDI_TACTRIX_OPENPORT_13M_PID) },
644 { USB_DEVICE(FTDI_VID, FTDI_TACTRIX_OPENPORT_13S_PID) },
645 { USB_DEVICE(FTDI_VID, FTDI_TACTRIX_OPENPORT_13U_PID) },
646 { USB_DEVICE(ELEKTOR_VID, ELEKTOR_FT323R_PID) },
647 { USB_DEVICE(TELLDUS_VID, TELLDUS_TELLSTICK_PID) },
648 { USB_DEVICE(FTDI_VID, FTDI_MAXSTREAM_PID) },
649 { USB_DEVICE(FTDI_VID, FTDI_PHI_FISCO_PID) },
650 { USB_DEVICE(TML_VID, TML_USB_SERIAL_PID) },
651 { USB_DEVICE(FTDI_VID, FTDI_ELSTER_UNICOM_PID) },
652 { USB_DEVICE(FTDI_VID, FTDI_PROPOX_JTAGCABLEII_PID) },
653 { USB_DEVICE(OLIMEX_VID, OLIMEX_ARM_USB_OCD_PID),
654 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
655 { USB_DEVICE(FIC_VID, FIC_NEO1973_DEBUG_PID),
656 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
657 { USB_DEVICE(FTDI_VID, FTDI_OOCDLINK_PID),
658 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
659 { USB_DEVICE(FTDI_VID, LMI_LM3S_DEVEL_BOARD_PID),
660 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
661 { USB_DEVICE(FTDI_VID, LMI_LM3S_EVAL_BOARD_PID),
662 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
663 { USB_DEVICE(RATOC_VENDOR_ID, RATOC_PRODUCT_ID_USB60F) },
664 { USB_DEVICE(FTDI_VID, FTDI_REU_TINY_PID) },
665 { USB_DEVICE(PAPOUCH_VID, PAPOUCH_QUIDO4x4_PID) },
666 { USB_DEVICE(FTDI_VID, FTDI_DOMINTELL_DGQG_PID) },
667 { USB_DEVICE(FTDI_VID, FTDI_DOMINTELL_DUSB_PID) },
668 { USB_DEVICE(ALTI2_VID, ALTI2_N3_PID) },
669 { USB_DEVICE(FTDI_VID, DIEBOLD_BCS_SE923_PID) },
670 { USB_DEVICE(FTDI_VID, FTDI_NDI_HUC_PID) },
671 { USB_DEVICE(ATMEL_VID, STK541_PID) },
672 { USB_DEVICE(DE_VID, STB_PID) },
673 { USB_DEVICE(DE_VID, WHT_PID) },
674 { USB_DEVICE(ADI_VID, ADI_GNICE_PID),
675 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
676 { USB_DEVICE(JETI_VID, JETI_SPC1201_PID) },
677 { USB_DEVICE(MARVELL_VID, MARVELL_SHEEVAPLUG_PID),
678 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
679 { USB_DEVICE(LARSENBRUSGAARD_VID, LB_ALTITRACK_PID) },
680 { }, /* Optional parameter entry */
681 { } /* Terminating entry */
684 MODULE_DEVICE_TABLE(usb, id_table_combined);
686 static struct usb_driver ftdi_driver = {
688 .probe = usb_serial_probe,
689 .disconnect = usb_serial_disconnect,
690 .id_table = id_table_combined,
694 static const char *ftdi_chip_name[] = {
695 [SIO] = "SIO", /* the serial part of FT8U100AX */
696 [FT8U232AM] = "FT8U232AM",
697 [FT232BM] = "FT232BM",
698 [FT2232C] = "FT2232C",
699 [FT232RL] = "FT232RL",
700 [FT2232H] = "FT2232H",
701 [FT4232H] = "FT4232H"
705 /* Constants for read urb and write urb */
709 #define THROTTLED 0x01
710 #define ACTUALLY_THROTTLED 0x02
712 /* Used for TIOCMIWAIT */
713 #define FTDI_STATUS_B0_MASK (FTDI_RS0_CTS | FTDI_RS0_DSR | FTDI_RS0_RI | FTDI_RS0_RLSD)
714 #define FTDI_STATUS_B1_MASK (FTDI_RS_BI)
717 #define FTDI_IMPL_ASYNC_FLAGS = (ASYNC_SPD_HI | ASYNC_SPD_VHI \
718 | ASYNC_SPD_CUST | ASYNC_SPD_SHI | ASYNC_SPD_WARP)
720 /* function prototypes for a FTDI serial converter */
721 static int ftdi_sio_probe(struct usb_serial *serial,
722 const struct usb_device_id *id);
723 static int ftdi_sio_port_probe(struct usb_serial_port *port);
724 static int ftdi_sio_port_remove(struct usb_serial_port *port);
725 static int ftdi_open(struct tty_struct *tty,
726 struct usb_serial_port *port, struct file *filp);
727 static void ftdi_close(struct usb_serial_port *port);
728 static void ftdi_dtr_rts(struct usb_serial_port *port, int on);
729 static int ftdi_write(struct tty_struct *tty, struct usb_serial_port *port,
730 const unsigned char *buf, int count);
731 static int ftdi_write_room(struct tty_struct *tty);
732 static int ftdi_chars_in_buffer(struct tty_struct *tty);
733 static void ftdi_write_bulk_callback(struct urb *urb);
734 static void ftdi_read_bulk_callback(struct urb *urb);
735 static void ftdi_process_read(struct work_struct *work);
736 static void ftdi_set_termios(struct tty_struct *tty,
737 struct usb_serial_port *port, struct ktermios *old);
738 static int ftdi_tiocmget(struct tty_struct *tty, struct file *file);
739 static int ftdi_tiocmset(struct tty_struct *tty, struct file *file,
740 unsigned int set, unsigned int clear);
741 static int ftdi_ioctl(struct tty_struct *tty, struct file *file,
742 unsigned int cmd, unsigned long arg);
743 static void ftdi_break_ctl(struct tty_struct *tty, int break_state);
744 static void ftdi_throttle(struct tty_struct *tty);
745 static void ftdi_unthrottle(struct tty_struct *tty);
747 static unsigned short int ftdi_232am_baud_base_to_divisor(int baud, int base);
748 static unsigned short int ftdi_232am_baud_to_divisor(int baud);
749 static __u32 ftdi_232bm_baud_base_to_divisor(int baud, int base);
750 static __u32 ftdi_232bm_baud_to_divisor(int baud);
751 static __u32 ftdi_2232h_baud_base_to_divisor(int baud, int base);
752 static __u32 ftdi_2232h_baud_to_divisor(int baud);
754 static struct usb_serial_driver ftdi_sio_device = {
756 .owner = THIS_MODULE,
759 .description = "FTDI USB Serial Device",
760 .usb_driver = &ftdi_driver ,
761 .id_table = id_table_combined,
763 .probe = ftdi_sio_probe,
764 .port_probe = ftdi_sio_port_probe,
765 .port_remove = ftdi_sio_port_remove,
768 .dtr_rts = ftdi_dtr_rts,
769 .throttle = ftdi_throttle,
770 .unthrottle = ftdi_unthrottle,
772 .write_room = ftdi_write_room,
773 .chars_in_buffer = ftdi_chars_in_buffer,
774 .read_bulk_callback = ftdi_read_bulk_callback,
775 .write_bulk_callback = ftdi_write_bulk_callback,
776 .tiocmget = ftdi_tiocmget,
777 .tiocmset = ftdi_tiocmset,
779 .set_termios = ftdi_set_termios,
780 .break_ctl = ftdi_break_ctl,
784 #define WDR_TIMEOUT 5000 /* default urb timeout */
785 #define WDR_SHORT_TIMEOUT 1000 /* shorter urb timeout */
787 /* High and low are for DTR, RTS etc etc */
791 /* number of outstanding urbs to prevent userspace DoS from happening */
792 #define URB_UPPER_LIMIT 42
795 * ***************************************************************************
797 * ***************************************************************************
800 static unsigned short int ftdi_232am_baud_base_to_divisor(int baud, int base)
802 unsigned short int divisor;
803 /* divisor shifted 3 bits to the left */
804 int divisor3 = base / 2 / baud;
805 if ((divisor3 & 0x7) == 7)
806 divisor3++; /* round x.7/8 up to x+1 */
807 divisor = divisor3 >> 3;
811 else if (divisor3 >= 4)
813 else if (divisor3 != 0)
815 else if (divisor == 1)
816 divisor = 0; /* special case for maximum baud rate */
820 static unsigned short int ftdi_232am_baud_to_divisor(int baud)
822 return ftdi_232am_baud_base_to_divisor(baud, 48000000);
825 static __u32 ftdi_232bm_baud_base_to_divisor(int baud, int base)
827 static const unsigned char divfrac[8] = { 0, 3, 2, 4, 1, 5, 6, 7 };
829 /* divisor shifted 3 bits to the left */
830 int divisor3 = base / 2 / baud;
831 divisor = divisor3 >> 3;
832 divisor |= (__u32)divfrac[divisor3 & 0x7] << 14;
833 /* Deal with special cases for highest baud rates. */
836 else if (divisor == 0x4001)
841 static __u32 ftdi_232bm_baud_to_divisor(int baud)
843 return ftdi_232bm_baud_base_to_divisor(baud, 48000000);
846 static __u32 ftdi_2232h_baud_base_to_divisor(int baud, int base)
848 static const unsigned char divfrac[8] = { 0, 3, 2, 4, 1, 5, 6, 7 };
852 /* hi-speed baud rate is 10-bit sampling instead of 16-bit */
853 divisor3 = (base / 10 / baud) * 8;
855 divisor = divisor3 >> 3;
856 divisor |= (__u32)divfrac[divisor3 & 0x7] << 14;
857 /* Deal with special cases for highest baud rates. */
860 else if (divisor == 0x4001)
863 * Set this bit to turn off a divide by 2.5 on baud rate generator
864 * This enables baud rates up to 12Mbaud but cannot reach below 1200
865 * baud with this bit set
867 divisor |= 0x00020000;
871 static __u32 ftdi_2232h_baud_to_divisor(int baud)
873 return ftdi_2232h_baud_base_to_divisor(baud, 120000000);
876 #define set_mctrl(port, set) update_mctrl((port), (set), 0)
877 #define clear_mctrl(port, clear) update_mctrl((port), 0, (clear))
879 static int update_mctrl(struct usb_serial_port *port, unsigned int set,
882 struct ftdi_private *priv = usb_get_serial_port_data(port);
887 if (((set | clear) & (TIOCM_DTR | TIOCM_RTS)) == 0) {
888 dbg("%s - DTR|RTS not being set|cleared", __func__);
889 return 0; /* no change */
892 buf = kmalloc(1, GFP_NOIO);
896 clear &= ~set; /* 'set' takes precedence over 'clear' */
898 if (clear & TIOCM_DTR)
899 urb_value |= FTDI_SIO_SET_DTR_LOW;
900 if (clear & TIOCM_RTS)
901 urb_value |= FTDI_SIO_SET_RTS_LOW;
903 urb_value |= FTDI_SIO_SET_DTR_HIGH;
905 urb_value |= FTDI_SIO_SET_RTS_HIGH;
906 rv = usb_control_msg(port->serial->dev,
907 usb_sndctrlpipe(port->serial->dev, 0),
908 FTDI_SIO_SET_MODEM_CTRL_REQUEST,
909 FTDI_SIO_SET_MODEM_CTRL_REQUEST_TYPE,
910 urb_value, priv->interface,
911 buf, 0, WDR_TIMEOUT);
915 dbg("%s Error from MODEM_CTRL urb: DTR %s, RTS %s",
917 (set & TIOCM_DTR) ? "HIGH" :
918 (clear & TIOCM_DTR) ? "LOW" : "unchanged",
919 (set & TIOCM_RTS) ? "HIGH" :
920 (clear & TIOCM_RTS) ? "LOW" : "unchanged");
922 dbg("%s - DTR %s, RTS %s", __func__,
923 (set & TIOCM_DTR) ? "HIGH" :
924 (clear & TIOCM_DTR) ? "LOW" : "unchanged",
925 (set & TIOCM_RTS) ? "HIGH" :
926 (clear & TIOCM_RTS) ? "LOW" : "unchanged");
927 /* FIXME: locking on last_dtr_rts */
928 priv->last_dtr_rts = (priv->last_dtr_rts & ~clear) | set;
934 static __u32 get_ftdi_divisor(struct tty_struct *tty,
935 struct usb_serial_port *port)
936 { /* get_ftdi_divisor */
937 struct ftdi_private *priv = usb_get_serial_port_data(port);
943 * The logic involved in setting the baudrate can be cleanly split into
945 * 1. Standard baud rates are set in tty->termios->c_cflag
946 * 2. If these are not enough, you can set any speed using alt_speed as
948 * - set tty->termios->c_cflag speed to B38400
949 * - set your real speed in tty->alt_speed; it gets ignored when
951 * - call TIOCSSERIAL ioctl with (struct serial_struct) set as
953 * flags & ASYNC_SPD_MASK == ASYNC_SPD_[HI, VHI, SHI, WARP],
954 * this just sets alt_speed to (HI: 57600, VHI: 115200,
955 * SHI: 230400, WARP: 460800)
956 * ** Steps 1, 2 are done courtesy of tty_get_baud_rate
957 * 3. You can also set baud rate by setting custom divisor as follows
958 * - set tty->termios->c_cflag speed to B38400
959 * - call TIOCSSERIAL ioctl with (struct serial_struct) set as
961 * o flags & ASYNC_SPD_MASK == ASYNC_SPD_CUST
962 * o custom_divisor set to baud_base / your_new_baudrate
963 * ** Step 3 is done courtesy of code borrowed from serial.c
964 * I should really spend some time and separate + move this common
965 * code to serial.c, it is replicated in nearly every serial driver
969 /* 1. Get the baud rate from the tty settings, this observes
972 baud = tty_get_baud_rate(tty);
973 dbg("%s - tty_get_baud_rate reports speed %d", __func__, baud);
975 /* 2. Observe async-compatible custom_divisor hack, update baudrate
979 ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_CUST) &&
980 (priv->custom_divisor)) {
981 baud = priv->baud_base / priv->custom_divisor;
982 dbg("%s - custom divisor %d sets baud rate to %d",
983 __func__, priv->custom_divisor, baud);
986 /* 3. Convert baudrate to device-specific divisor */
990 switch (priv->chip_type) {
991 case SIO: /* SIO chip */
993 case 300: div_value = ftdi_sio_b300; break;
994 case 600: div_value = ftdi_sio_b600; break;
995 case 1200: div_value = ftdi_sio_b1200; break;
996 case 2400: div_value = ftdi_sio_b2400; break;
997 case 4800: div_value = ftdi_sio_b4800; break;
998 case 9600: div_value = ftdi_sio_b9600; break;
999 case 19200: div_value = ftdi_sio_b19200; break;
1000 case 38400: div_value = ftdi_sio_b38400; break;
1001 case 57600: div_value = ftdi_sio_b57600; break;
1002 case 115200: div_value = ftdi_sio_b115200; break;
1004 if (div_value == 0) {
1005 dbg("%s - Baudrate (%d) requested is not supported",
1007 div_value = ftdi_sio_b9600;
1012 case FT8U232AM: /* 8U232AM chip */
1013 if (baud <= 3000000) {
1014 div_value = ftdi_232am_baud_to_divisor(baud);
1016 dbg("%s - Baud rate too high!", __func__);
1018 div_value = ftdi_232am_baud_to_divisor(9600);
1022 case FT232BM: /* FT232BM chip */
1023 case FT2232C: /* FT2232C chip */
1025 if (baud <= 3000000) {
1026 div_value = ftdi_232bm_baud_to_divisor(baud);
1028 dbg("%s - Baud rate too high!", __func__);
1029 div_value = ftdi_232bm_baud_to_divisor(9600);
1034 case FT2232H: /* FT2232H chip */
1035 case FT4232H: /* FT4232H chip */
1036 if ((baud <= 12000000) & (baud >= 1200)) {
1037 div_value = ftdi_2232h_baud_to_divisor(baud);
1038 } else if (baud < 1200) {
1039 div_value = ftdi_232bm_baud_to_divisor(baud);
1041 dbg("%s - Baud rate too high!", __func__);
1042 div_value = ftdi_232bm_baud_to_divisor(9600);
1047 } /* priv->chip_type */
1050 dbg("%s - Baud rate set to %d (divisor 0x%lX) on chip %s",
1051 __func__, baud, (unsigned long)div_value,
1052 ftdi_chip_name[priv->chip_type]);
1055 tty_encode_baud_rate(tty, baud, baud);
1059 static int change_speed(struct tty_struct *tty, struct usb_serial_port *port)
1061 struct ftdi_private *priv = usb_get_serial_port_data(port);
1065 __u32 urb_index_value;
1068 buf = kmalloc(1, GFP_NOIO);
1072 urb_index_value = get_ftdi_divisor(tty, port);
1073 urb_value = (__u16)urb_index_value;
1074 urb_index = (__u16)(urb_index_value >> 16);
1075 if (priv->interface) { /* FT2232C */
1076 urb_index = (__u16)((urb_index << 8) | priv->interface);
1079 rv = usb_control_msg(port->serial->dev,
1080 usb_sndctrlpipe(port->serial->dev, 0),
1081 FTDI_SIO_SET_BAUDRATE_REQUEST,
1082 FTDI_SIO_SET_BAUDRATE_REQUEST_TYPE,
1083 urb_value, urb_index,
1084 buf, 0, WDR_SHORT_TIMEOUT);
1090 static int write_latency_timer(struct usb_serial_port *port)
1092 struct ftdi_private *priv = usb_get_serial_port_data(port);
1093 struct usb_device *udev = port->serial->dev;
1096 int l = priv->latency;
1098 if (priv->flags & ASYNC_LOW_LATENCY)
1101 dbg("%s: setting latency timer = %i", __func__, l);
1103 rv = usb_control_msg(udev,
1104 usb_sndctrlpipe(udev, 0),
1105 FTDI_SIO_SET_LATENCY_TIMER_REQUEST,
1106 FTDI_SIO_SET_LATENCY_TIMER_REQUEST_TYPE,
1108 buf, 0, WDR_TIMEOUT);
1111 dev_err(&port->dev, "Unable to write latency timer: %i\n", rv);
1115 static int read_latency_timer(struct usb_serial_port *port)
1117 struct ftdi_private *priv = usb_get_serial_port_data(port);
1118 struct usb_device *udev = port->serial->dev;
1119 unsigned short latency = 0;
1123 dbg("%s", __func__);
1125 rv = usb_control_msg(udev,
1126 usb_rcvctrlpipe(udev, 0),
1127 FTDI_SIO_GET_LATENCY_TIMER_REQUEST,
1128 FTDI_SIO_GET_LATENCY_TIMER_REQUEST_TYPE,
1130 (char *) &latency, 1, WDR_TIMEOUT);
1133 dev_err(&port->dev, "Unable to read latency timer: %i\n", rv);
1139 static int get_serial_info(struct usb_serial_port *port,
1140 struct serial_struct __user *retinfo)
1142 struct ftdi_private *priv = usb_get_serial_port_data(port);
1143 struct serial_struct tmp;
1147 memset(&tmp, 0, sizeof(tmp));
1148 tmp.flags = priv->flags;
1149 tmp.baud_base = priv->baud_base;
1150 tmp.custom_divisor = priv->custom_divisor;
1151 if (copy_to_user(retinfo, &tmp, sizeof(*retinfo)))
1154 } /* get_serial_info */
1157 static int set_serial_info(struct tty_struct *tty,
1158 struct usb_serial_port *port, struct serial_struct __user *newinfo)
1159 { /* set_serial_info */
1160 struct ftdi_private *priv = usb_get_serial_port_data(port);
1161 struct serial_struct new_serial;
1162 struct ftdi_private old_priv;
1164 if (copy_from_user(&new_serial, newinfo, sizeof(new_serial)))
1170 /* Do error checking and permission checking */
1172 if (!capable(CAP_SYS_ADMIN)) {
1173 if (((new_serial.flags & ~ASYNC_USR_MASK) !=
1174 (priv->flags & ~ASYNC_USR_MASK))) {
1178 priv->flags = ((priv->flags & ~ASYNC_USR_MASK) |
1179 (new_serial.flags & ASYNC_USR_MASK));
1180 priv->custom_divisor = new_serial.custom_divisor;
1181 goto check_and_exit;
1184 if ((new_serial.baud_base != priv->baud_base) &&
1185 (new_serial.baud_base < 9600)) {
1190 /* Make the changes - these are privileged changes! */
1192 priv->flags = ((priv->flags & ~ASYNC_FLAGS) |
1193 (new_serial.flags & ASYNC_FLAGS));
1194 priv->custom_divisor = new_serial.custom_divisor;
1196 tty->low_latency = (priv->flags & ASYNC_LOW_LATENCY) ? 1 : 0;
1197 write_latency_timer(port);
1200 if ((old_priv.flags & ASYNC_SPD_MASK) !=
1201 (priv->flags & ASYNC_SPD_MASK)) {
1202 if ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_HI)
1203 tty->alt_speed = 57600;
1204 else if ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_VHI)
1205 tty->alt_speed = 115200;
1206 else if ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_SHI)
1207 tty->alt_speed = 230400;
1208 else if ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_WARP)
1209 tty->alt_speed = 460800;
1213 if (((old_priv.flags & ASYNC_SPD_MASK) !=
1214 (priv->flags & ASYNC_SPD_MASK)) ||
1215 (((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_CUST) &&
1216 (old_priv.custom_divisor != priv->custom_divisor))) {
1218 change_speed(tty, port);
1224 } /* set_serial_info */
1227 /* Determine type of FTDI chip based on USB config and descriptor. */
1228 static void ftdi_determine_type(struct usb_serial_port *port)
1230 struct ftdi_private *priv = usb_get_serial_port_data(port);
1231 struct usb_serial *serial = port->serial;
1232 struct usb_device *udev = serial->dev;
1234 unsigned interfaces;
1236 /* Assume it is not the original SIO device for now. */
1237 priv->baud_base = 48000000 / 2;
1238 priv->write_offset = 0;
1240 version = le16_to_cpu(udev->descriptor.bcdDevice);
1241 interfaces = udev->actconfig->desc.bNumInterfaces;
1242 dbg("%s: bcdDevice = 0x%x, bNumInterfaces = %u", __func__,
1243 version, interfaces);
1244 if (interfaces > 1) {
1247 /* Multiple interfaces.*/
1248 if (version == 0x0800) {
1249 priv->chip_type = FT4232H;
1250 /* Hi-speed - baud clock runs at 120MHz */
1251 priv->baud_base = 120000000 / 2;
1252 } else if (version == 0x0700) {
1253 priv->chip_type = FT2232H;
1254 /* Hi-speed - baud clock runs at 120MHz */
1255 priv->baud_base = 120000000 / 2;
1257 priv->chip_type = FT2232C;
1259 /* Determine interface code. */
1260 inter = serial->interface->altsetting->desc.bInterfaceNumber;
1262 priv->interface = INTERFACE_A;
1263 } else if (inter == 1) {
1264 priv->interface = INTERFACE_B;
1265 } else if (inter == 2) {
1266 priv->interface = INTERFACE_C;
1267 } else if (inter == 3) {
1268 priv->interface = INTERFACE_D;
1270 /* BM-type devices have a bug where bcdDevice gets set
1271 * to 0x200 when iSerialNumber is 0. */
1272 if (version < 0x500) {
1273 dbg("%s: something fishy - bcdDevice too low for multi-interface device",
1276 } else if (version < 0x200) {
1277 /* Old device. Assume its the original SIO. */
1278 priv->chip_type = SIO;
1279 priv->baud_base = 12000000 / 16;
1280 priv->write_offset = 1;
1281 } else if (version < 0x400) {
1282 /* Assume its an FT8U232AM (or FT8U245AM) */
1283 /* (It might be a BM because of the iSerialNumber bug,
1284 * but it will still work as an AM device.) */
1285 priv->chip_type = FT8U232AM;
1286 } else if (version < 0x600) {
1287 /* Assume its an FT232BM (or FT245BM) */
1288 priv->chip_type = FT232BM;
1290 /* Assume its an FT232R */
1291 priv->chip_type = FT232RL;
1293 dev_info(&udev->dev, "Detected %s\n", ftdi_chip_name[priv->chip_type]);
1297 /* Determine the maximum packet size for the device. This depends on the chip
1298 * type and the USB host capabilities. The value should be obtained from the
1299 * device descriptor as the chip will use the appropriate values for the host.*/
1300 static void ftdi_set_max_packet_size(struct usb_serial_port *port)
1302 struct ftdi_private *priv = usb_get_serial_port_data(port);
1303 struct usb_serial *serial = port->serial;
1304 struct usb_device *udev = serial->dev;
1306 struct usb_interface *interface = serial->interface;
1307 struct usb_endpoint_descriptor *ep_desc = &interface->cur_altsetting->endpoint[1].desc;
1309 unsigned num_endpoints;
1312 num_endpoints = interface->cur_altsetting->desc.bNumEndpoints;
1313 dev_info(&udev->dev, "Number of endpoints %d\n", num_endpoints);
1315 /* NOTE: some customers have programmed FT232R/FT245R devices
1316 * with an endpoint size of 0 - not good. In this case, we
1317 * want to override the endpoint descriptor setting and use a
1318 * value of 64 for wMaxPacketSize */
1319 for (i = 0; i < num_endpoints; i++) {
1320 dev_info(&udev->dev, "Endpoint %d MaxPacketSize %d\n", i+1,
1321 interface->cur_altsetting->endpoint[i].desc.wMaxPacketSize);
1322 ep_desc = &interface->cur_altsetting->endpoint[i].desc;
1323 if (ep_desc->wMaxPacketSize == 0) {
1324 ep_desc->wMaxPacketSize = cpu_to_le16(0x40);
1325 dev_info(&udev->dev, "Overriding wMaxPacketSize on endpoint %d\n", i);
1329 /* set max packet size based on descriptor */
1330 priv->max_packet_size = ep_desc->wMaxPacketSize;
1332 dev_info(&udev->dev, "Setting MaxPacketSize %d\n", priv->max_packet_size);
1337 * ***************************************************************************
1339 * ***************************************************************************
1342 static ssize_t show_latency_timer(struct device *dev,
1343 struct device_attribute *attr, char *buf)
1345 struct usb_serial_port *port = to_usb_serial_port(dev);
1346 struct ftdi_private *priv = usb_get_serial_port_data(port);
1347 if (priv->flags & ASYNC_LOW_LATENCY)
1348 return sprintf(buf, "1\n");
1350 return sprintf(buf, "%i\n", priv->latency);
1354 /* Write a new value of the latency timer, in units of milliseconds. */
1355 static ssize_t store_latency_timer(struct device *dev,
1356 struct device_attribute *attr, const char *valbuf,
1359 struct usb_serial_port *port = to_usb_serial_port(dev);
1360 struct ftdi_private *priv = usb_get_serial_port_data(port);
1361 int v = simple_strtoul(valbuf, NULL, 10);
1365 rv = write_latency_timer(port);
1371 /* Write an event character directly to the FTDI register. The ASCII
1372 value is in the low 8 bits, with the enable bit in the 9th bit. */
1373 static ssize_t store_event_char(struct device *dev,
1374 struct device_attribute *attr, const char *valbuf, size_t count)
1376 struct usb_serial_port *port = to_usb_serial_port(dev);
1377 struct ftdi_private *priv = usb_get_serial_port_data(port);
1378 struct usb_device *udev = port->serial->dev;
1380 int v = simple_strtoul(valbuf, NULL, 10);
1383 dbg("%s: setting event char = %i", __func__, v);
1385 rv = usb_control_msg(udev,
1386 usb_sndctrlpipe(udev, 0),
1387 FTDI_SIO_SET_EVENT_CHAR_REQUEST,
1388 FTDI_SIO_SET_EVENT_CHAR_REQUEST_TYPE,
1390 buf, 0, WDR_TIMEOUT);
1393 dbg("Unable to write event character: %i", rv);
1400 static DEVICE_ATTR(latency_timer, S_IWUSR | S_IRUGO, show_latency_timer,
1401 store_latency_timer);
1402 static DEVICE_ATTR(event_char, S_IWUSR, NULL, store_event_char);
1404 static int create_sysfs_attrs(struct usb_serial_port *port)
1406 struct ftdi_private *priv = usb_get_serial_port_data(port);
1409 dbg("%s", __func__);
1411 /* XXX I've no idea if the original SIO supports the event_char
1412 * sysfs parameter, so I'm playing it safe. */
1413 if (priv->chip_type != SIO) {
1414 dbg("sysfs attributes for %s", ftdi_chip_name[priv->chip_type]);
1415 retval = device_create_file(&port->dev, &dev_attr_event_char);
1417 (priv->chip_type == FT232BM ||
1418 priv->chip_type == FT2232C ||
1419 priv->chip_type == FT232RL ||
1420 priv->chip_type == FT2232H ||
1421 priv->chip_type == FT4232H)) {
1422 retval = device_create_file(&port->dev,
1423 &dev_attr_latency_timer);
1429 static void remove_sysfs_attrs(struct usb_serial_port *port)
1431 struct ftdi_private *priv = usb_get_serial_port_data(port);
1433 dbg("%s", __func__);
1435 /* XXX see create_sysfs_attrs */
1436 if (priv->chip_type != SIO) {
1437 device_remove_file(&port->dev, &dev_attr_event_char);
1438 if (priv->chip_type == FT232BM ||
1439 priv->chip_type == FT2232C ||
1440 priv->chip_type == FT232RL ||
1441 priv->chip_type == FT2232H ||
1442 priv->chip_type == FT4232H) {
1443 device_remove_file(&port->dev, &dev_attr_latency_timer);
1450 * ***************************************************************************
1451 * FTDI driver specific functions
1452 * ***************************************************************************
1455 /* Probe function to check for special devices */
1456 static int ftdi_sio_probe(struct usb_serial *serial,
1457 const struct usb_device_id *id)
1459 struct ftdi_sio_quirk *quirk =
1460 (struct ftdi_sio_quirk *)id->driver_info;
1462 if (quirk && quirk->probe) {
1463 int ret = quirk->probe(serial);
1468 usb_set_serial_data(serial, (void *)id->driver_info);
1473 static int ftdi_sio_port_probe(struct usb_serial_port *port)
1475 struct ftdi_private *priv;
1476 struct ftdi_sio_quirk *quirk = usb_get_serial_data(port->serial);
1479 dbg("%s", __func__);
1481 priv = kzalloc(sizeof(struct ftdi_private), GFP_KERNEL);
1483 dev_err(&port->dev, "%s- kmalloc(%Zd) failed.\n", __func__,
1484 sizeof(struct ftdi_private));
1488 kref_init(&priv->kref);
1489 spin_lock_init(&priv->rx_lock);
1490 spin_lock_init(&priv->tx_lock);
1491 init_waitqueue_head(&priv->delta_msr_wait);
1492 /* This will push the characters through immediately rather
1493 than queue a task to deliver them */
1494 priv->flags = ASYNC_LOW_LATENCY;
1496 if (quirk && quirk->port_probe)
1497 quirk->port_probe(priv);
1499 /* Increase the size of read buffers */
1500 kfree(port->bulk_in_buffer);
1501 port->bulk_in_buffer = kmalloc(BUFSZ, GFP_KERNEL);
1502 if (!port->bulk_in_buffer) {
1506 if (port->read_urb) {
1507 port->read_urb->transfer_buffer = port->bulk_in_buffer;
1508 port->read_urb->transfer_buffer_length = BUFSZ;
1511 INIT_DELAYED_WORK(&priv->rx_work, ftdi_process_read);
1514 /* Free port's existing write urb and transfer buffer. */
1515 if (port->write_urb) {
1516 usb_free_urb(port->write_urb);
1517 port->write_urb = NULL;
1519 kfree(port->bulk_out_buffer);
1520 port->bulk_out_buffer = NULL;
1522 usb_set_serial_port_data(port, priv);
1524 ftdi_determine_type(port);
1525 ftdi_set_max_packet_size(port);
1526 read_latency_timer(port);
1527 create_sysfs_attrs(port);
1531 /* Setup for the USB-UIRT device, which requires hardwired
1532 * baudrate (38400 gets mapped to 312500) */
1533 /* Called from usbserial:serial_probe */
1534 static void ftdi_USB_UIRT_setup(struct ftdi_private *priv)
1536 dbg("%s", __func__);
1538 priv->flags |= ASYNC_SPD_CUST;
1539 priv->custom_divisor = 77;
1540 priv->force_baud = 38400;
1541 } /* ftdi_USB_UIRT_setup */
1543 /* Setup for the HE-TIRA1 device, which requires hardwired
1544 * baudrate (38400 gets mapped to 100000) and RTS-CTS enabled. */
1546 static void ftdi_HE_TIRA1_setup(struct ftdi_private *priv)
1548 dbg("%s", __func__);
1550 priv->flags |= ASYNC_SPD_CUST;
1551 priv->custom_divisor = 240;
1552 priv->force_baud = 38400;
1553 priv->force_rtscts = 1;
1554 } /* ftdi_HE_TIRA1_setup */
1557 * First port on JTAG adaptors such as Olimex arm-usb-ocd or the FIC/OpenMoko
1558 * Neo1973 Debug Board is reserved for JTAG interface and can be accessed from
1559 * userspace using openocd.
1561 static int ftdi_jtag_probe(struct usb_serial *serial)
1563 struct usb_device *udev = serial->dev;
1564 struct usb_interface *interface = serial->interface;
1566 dbg("%s", __func__);
1568 if (interface == udev->actconfig->interface[0]) {
1569 dev_info(&udev->dev,
1570 "Ignoring serial port reserved for JTAG\n");
1578 * The Matrix Orbital VK204-25-USB has an invalid IN endpoint.
1579 * We have to correct it if we want to read from it.
1581 static int ftdi_mtxorb_hack_setup(struct usb_serial *serial)
1583 struct usb_host_endpoint *ep = serial->dev->ep_in[1];
1584 struct usb_endpoint_descriptor *ep_desc = &ep->desc;
1586 if (ep->enabled && ep_desc->wMaxPacketSize == 0) {
1587 ep_desc->wMaxPacketSize = cpu_to_le16(0x40);
1588 dev_info(&serial->dev->dev,
1589 "Fixing invalid wMaxPacketSize on read pipe\n");
1595 static void ftdi_sio_priv_release(struct kref *k)
1597 struct ftdi_private *priv = container_of(k, struct ftdi_private, kref);
1602 static int ftdi_sio_port_remove(struct usb_serial_port *port)
1604 struct ftdi_private *priv = usb_get_serial_port_data(port);
1606 dbg("%s", __func__);
1608 remove_sysfs_attrs(port);
1610 kref_put(&priv->kref, ftdi_sio_priv_release);
1615 static int ftdi_open(struct tty_struct *tty,
1616 struct usb_serial_port *port, struct file *filp)
1618 struct usb_device *dev = port->serial->dev;
1619 struct ftdi_private *priv = usb_get_serial_port_data(port);
1620 unsigned long flags;
1623 char buf[1]; /* Needed for the usb_control_msg I think */
1625 dbg("%s", __func__);
1627 spin_lock_irqsave(&priv->tx_lock, flags);
1629 spin_unlock_irqrestore(&priv->tx_lock, flags);
1630 spin_lock_irqsave(&priv->rx_lock, flags);
1632 spin_unlock_irqrestore(&priv->rx_lock, flags);
1635 tty->low_latency = (priv->flags & ASYNC_LOW_LATENCY) ? 1 : 0;
1637 write_latency_timer(port);
1639 /* No error checking for this (will get errors later anyway) */
1640 /* See ftdi_sio.h for description of what is reset */
1641 usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
1642 FTDI_SIO_RESET_REQUEST, FTDI_SIO_RESET_REQUEST_TYPE,
1644 priv->interface, buf, 0, WDR_TIMEOUT);
1646 /* Termios defaults are set by usb_serial_init. We don't change
1647 port->tty->termios - this would lose speed settings, etc.
1648 This is same behaviour as serial.c/rs_open() - Kuba */
1650 /* ftdi_set_termios will send usb control messages */
1652 ftdi_set_termios(tty, port, tty->termios);
1655 spin_lock_irqsave(&priv->rx_lock, flags);
1656 priv->rx_flags &= ~(THROTTLED | ACTUALLY_THROTTLED);
1657 spin_unlock_irqrestore(&priv->rx_lock, flags);
1659 /* Start reading from the device */
1660 priv->rx_processed = 0;
1661 usb_fill_bulk_urb(port->read_urb, dev,
1662 usb_rcvbulkpipe(dev, port->bulk_in_endpointAddress),
1663 port->read_urb->transfer_buffer,
1664 port->read_urb->transfer_buffer_length,
1665 ftdi_read_bulk_callback, port);
1666 result = usb_submit_urb(port->read_urb, GFP_KERNEL);
1669 "%s - failed submitting read urb, error %d\n",
1672 kref_get(&priv->kref);
1678 static void ftdi_dtr_rts(struct usb_serial_port *port, int on)
1680 struct ftdi_private *priv = usb_get_serial_port_data(port);
1683 mutex_lock(&port->serial->disc_mutex);
1684 if (!port->serial->disconnected) {
1685 /* Disable flow control */
1686 if (!on && usb_control_msg(port->serial->dev,
1687 usb_sndctrlpipe(port->serial->dev, 0),
1688 FTDI_SIO_SET_FLOW_CTRL_REQUEST,
1689 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE,
1690 0, priv->interface, buf, 0,
1692 dev_err(&port->dev, "error from flowcontrol urb\n");
1694 /* drop RTS and DTR */
1696 set_mctrl(port, TIOCM_DTR | TIOCM_RTS);
1698 clear_mctrl(port, TIOCM_DTR | TIOCM_RTS);
1700 mutex_unlock(&port->serial->disc_mutex);
1704 * usbserial:__serial_close only calls ftdi_close if the point is open
1706 * This only gets called when it is the last close
1711 static void ftdi_close(struct usb_serial_port *port)
1713 struct ftdi_private *priv = usb_get_serial_port_data(port);
1715 dbg("%s", __func__);
1718 /* cancel any scheduled reading */
1719 cancel_delayed_work_sync(&priv->rx_work);
1721 /* shutdown our bulk read */
1722 usb_kill_urb(port->read_urb);
1723 kref_put(&priv->kref, ftdi_sio_priv_release);
1728 /* The SIO requires the first byte to have:
1731 * B2..7 length of message excluding byte 0
1733 * The new devices do not require this byte
1735 static int ftdi_write(struct tty_struct *tty, struct usb_serial_port *port,
1736 const unsigned char *buf, int count)
1738 struct ftdi_private *priv = usb_get_serial_port_data(port);
1740 unsigned char *buffer;
1741 int data_offset ; /* will be 1 for the SIO and 0 otherwise */
1744 unsigned long flags;
1746 dbg("%s port %d, %d bytes", __func__, port->number, count);
1749 dbg("write request of 0 bytes");
1752 spin_lock_irqsave(&priv->tx_lock, flags);
1753 if (priv->tx_outstanding_urbs > URB_UPPER_LIMIT) {
1754 spin_unlock_irqrestore(&priv->tx_lock, flags);
1755 dbg("%s - write limit hit\n", __func__);
1758 priv->tx_outstanding_urbs++;
1759 spin_unlock_irqrestore(&priv->tx_lock, flags);
1761 data_offset = priv->write_offset;
1762 dbg("data_offset set to %d", data_offset);
1764 /* Determine total transfer size */
1765 transfer_size = count;
1766 if (data_offset > 0) {
1767 /* Original sio needs control bytes too... */
1768 transfer_size += (data_offset *
1769 ((count + (priv->max_packet_size - 1 - data_offset)) /
1770 (priv->max_packet_size - data_offset)));
1773 buffer = kmalloc(transfer_size, GFP_ATOMIC);
1776 "%s ran out of kernel memory for urb ...\n", __func__);
1778 goto error_no_buffer;
1781 urb = usb_alloc_urb(0, GFP_ATOMIC);
1783 dev_err(&port->dev, "%s - no more free urbs\n", __func__);
1789 if (data_offset > 0) {
1790 /* Original sio requires control byte at start of
1792 int user_pktsz = priv->max_packet_size - data_offset;
1794 unsigned char *first_byte = buffer;
1795 const unsigned char *current_position = buf;
1798 if (user_pktsz > todo)
1800 /* Write the control byte at the front of the packet*/
1801 *first_byte = 1 | ((user_pktsz) << 2);
1802 /* Copy data for packet */
1803 memcpy(first_byte + data_offset,
1804 current_position, user_pktsz);
1805 first_byte += user_pktsz + data_offset;
1806 current_position += user_pktsz;
1810 /* No control byte required. */
1811 /* Copy in the data to send */
1812 memcpy(buffer, buf, count);
1815 usb_serial_debug_data(debug, &port->dev, __func__,
1816 transfer_size, buffer);
1818 /* fill the buffer and send it */
1819 usb_fill_bulk_urb(urb, port->serial->dev,
1820 usb_sndbulkpipe(port->serial->dev,
1821 port->bulk_out_endpointAddress),
1822 buffer, transfer_size,
1823 ftdi_write_bulk_callback, port);
1825 status = usb_submit_urb(urb, GFP_ATOMIC);
1828 "%s - failed submitting write urb, error %d\n",
1833 spin_lock_irqsave(&priv->tx_lock, flags);
1834 priv->tx_outstanding_bytes += count;
1835 priv->tx_bytes += count;
1836 spin_unlock_irqrestore(&priv->tx_lock, flags);
1839 /* we are done with this urb, so let the host driver
1840 * really free it when it is finished with it */
1843 dbg("%s write returning: %d", __func__, count);
1850 spin_lock_irqsave(&priv->tx_lock, flags);
1851 priv->tx_outstanding_urbs--;
1852 spin_unlock_irqrestore(&priv->tx_lock, flags);
1857 /* This function may get called when the device is closed */
1859 static void ftdi_write_bulk_callback(struct urb *urb)
1861 unsigned long flags;
1862 struct usb_serial_port *port = urb->context;
1863 struct ftdi_private *priv;
1864 int data_offset; /* will be 1 for the SIO and 0 otherwise */
1865 unsigned long countback;
1866 int status = urb->status;
1868 /* free up the transfer buffer, as usb_free_urb() does not do this */
1869 kfree(urb->transfer_buffer);
1871 dbg("%s - port %d", __func__, port->number);
1873 priv = usb_get_serial_port_data(port);
1875 dbg("%s - bad port private data pointer - exiting", __func__);
1878 /* account for transferred data */
1879 countback = urb->actual_length;
1880 data_offset = priv->write_offset;
1881 if (data_offset > 0) {
1882 /* Subtract the control bytes */
1883 countback -= (data_offset * DIV_ROUND_UP(countback, priv->max_packet_size));
1885 spin_lock_irqsave(&priv->tx_lock, flags);
1886 --priv->tx_outstanding_urbs;
1887 priv->tx_outstanding_bytes -= countback;
1888 spin_unlock_irqrestore(&priv->tx_lock, flags);
1891 dbg("nonzero write bulk status received: %d", status);
1895 usb_serial_port_softint(port);
1896 } /* ftdi_write_bulk_callback */
1899 static int ftdi_write_room(struct tty_struct *tty)
1901 struct usb_serial_port *port = tty->driver_data;
1902 struct ftdi_private *priv = usb_get_serial_port_data(port);
1904 unsigned long flags;
1906 dbg("%s - port %d", __func__, port->number);
1908 spin_lock_irqsave(&priv->tx_lock, flags);
1909 if (priv->tx_outstanding_urbs < URB_UPPER_LIMIT) {
1911 * We really can take anything the user throws at us
1912 * but let's pick a nice big number to tell the tty
1913 * layer that we have lots of free space
1919 spin_unlock_irqrestore(&priv->tx_lock, flags);
1923 static int ftdi_chars_in_buffer(struct tty_struct *tty)
1925 struct usb_serial_port *port = tty->driver_data;
1926 struct ftdi_private *priv = usb_get_serial_port_data(port);
1928 unsigned long flags;
1930 dbg("%s - port %d", __func__, port->number);
1932 spin_lock_irqsave(&priv->tx_lock, flags);
1933 buffered = (int)priv->tx_outstanding_bytes;
1934 spin_unlock_irqrestore(&priv->tx_lock, flags);
1936 dev_err(&port->dev, "%s outstanding tx bytes is negative!\n",
1943 static void ftdi_read_bulk_callback(struct urb *urb)
1945 struct usb_serial_port *port = urb->context;
1946 struct tty_struct *tty;
1947 struct ftdi_private *priv;
1948 unsigned long countread;
1949 unsigned long flags;
1950 int status = urb->status;
1952 if (urb->number_of_packets > 0) {
1953 dev_err(&port->dev, "%s transfer_buffer_length %d "
1954 "actual_length %d number of packets %d\n", __func__,
1955 urb->transfer_buffer_length,
1956 urb->actual_length, urb->number_of_packets);
1957 dev_err(&port->dev, "%s transfer_flags %x\n", __func__,
1958 urb->transfer_flags);
1961 dbg("%s - port %d", __func__, port->number);
1963 if (port->port.count <= 0)
1966 tty = tty_port_tty_get(&port->port);
1968 dbg("%s - bad tty pointer - exiting", __func__);
1972 priv = usb_get_serial_port_data(port);
1974 dbg("%s - bad port private data pointer - exiting", __func__);
1978 if (urb != port->read_urb)
1979 dev_err(&port->dev, "%s - Not my urb!\n", __func__);
1982 /* This will happen at close every time so it is a dbg not an
1984 dbg("(this is ok on close) nonzero read bulk status received: %d", status);
1988 /* count data bytes, but not status bytes */
1989 countread = urb->actual_length;
1990 countread -= 2 * DIV_ROUND_UP(countread, priv->max_packet_size);
1991 spin_lock_irqsave(&priv->rx_lock, flags);
1992 priv->rx_bytes += countread;
1993 spin_unlock_irqrestore(&priv->rx_lock, flags);
1995 ftdi_process_read(&priv->rx_work.work);
1998 } /* ftdi_read_bulk_callback */
2001 static void ftdi_process_read(struct work_struct *work)
2002 { /* ftdi_process_read */
2003 struct ftdi_private *priv =
2004 container_of(work, struct ftdi_private, rx_work.work);
2005 struct usb_serial_port *port = priv->port;
2007 struct tty_struct *tty;
2009 unsigned char *data;
2015 unsigned long flags;
2017 dbg("%s - port %d", __func__, port->number);
2019 if (port->port.count <= 0)
2022 tty = tty_port_tty_get(&port->port);
2024 dbg("%s - bad tty pointer - exiting", __func__);
2028 priv = usb_get_serial_port_data(port);
2030 dbg("%s - bad port private data pointer - exiting", __func__);
2034 urb = port->read_urb;
2036 dbg("%s - bad read_urb pointer - exiting", __func__);
2040 data = urb->transfer_buffer;
2042 if (priv->rx_processed) {
2043 dbg("%s - already processed: %d bytes, %d remain", __func__,
2045 urb->actual_length - priv->rx_processed);
2047 /* The first two bytes of every read packet are status */
2048 if (urb->actual_length > 2)
2049 usb_serial_debug_data(debug, &port->dev, __func__,
2050 urb->actual_length, data);
2052 dbg("Status only: %03oo %03oo", data[0], data[1]);
2056 /* TO DO -- check for hung up line and handle appropriately: */
2058 /* See acm.c - you do a tty_hangup - eg tty_hangup(tty) */
2059 /* if CD is dropped and the line is not CLOCAL then we should hangup */
2062 for (packet_offset = priv->rx_processed;
2063 packet_offset < urb->actual_length; packet_offset += priv->max_packet_size) {
2066 /* Compare new line status to the old one, signal if different/
2067 N.B. packet may be processed more than once, but differences
2068 are only processed once. */
2069 char new_status = data[packet_offset + 0] &
2070 FTDI_STATUS_B0_MASK;
2071 if (new_status != priv->prev_status) {
2072 priv->diff_status |=
2073 new_status ^ priv->prev_status;
2074 wake_up_interruptible(&priv->delta_msr_wait);
2075 priv->prev_status = new_status;
2078 length = min_t(u32, priv->max_packet_size, urb->actual_length-packet_offset)-2;
2080 dev_err(&port->dev, "%s - bad packet length: %d\n",
2081 __func__, length+2);
2085 if (priv->rx_flags & THROTTLED) {
2086 dbg("%s - throttled", __func__);
2089 if (tty_buffer_request_room(tty, length) < length) {
2090 /* break out & wait for throttling/unthrottling to
2092 dbg("%s - receive room low", __func__);
2096 /* Handle errors and break */
2097 error_flag = TTY_NORMAL;
2098 /* Although the device uses a bitmask and hence can have
2099 multiple errors on a packet - the order here sets the
2100 priority the error is returned to the tty layer */
2102 if (data[packet_offset+1] & FTDI_RS_OE) {
2103 error_flag = TTY_OVERRUN;
2104 dbg("OVERRRUN error");
2106 if (data[packet_offset+1] & FTDI_RS_BI) {
2107 error_flag = TTY_BREAK;
2108 dbg("BREAK received");
2109 usb_serial_handle_break(port);
2111 if (data[packet_offset+1] & FTDI_RS_PE) {
2112 error_flag = TTY_PARITY;
2113 dbg("PARITY error");
2115 if (data[packet_offset+1] & FTDI_RS_FE) {
2116 error_flag = TTY_FRAME;
2117 dbg("FRAMING error");
2120 for (i = 2; i < length+2; i++) {
2121 /* Note that the error flag is duplicated for
2122 every character received since we don't know
2123 which character it applied to */
2124 if (!usb_serial_handle_sysrq_char(port,
2125 data[packet_offset + i]))
2126 tty_insert_flip_char(tty,
2127 data[packet_offset + i],
2133 #ifdef NOT_CORRECT_BUT_KEEPING_IT_FOR_NOW
2134 /* if a parity error is detected you get status packets forever
2135 until a character is sent without a parity error.
2136 This doesn't work well since the application receives a
2137 never ending stream of bad data - even though new data
2138 hasn't been sent. Therefore I (bill) have taken this out.
2139 However - this might make sense for framing errors and so on
2140 so I am leaving the code in for now.
2143 if (error_flag != TTY_NORMAL) {
2144 dbg("error_flag is not normal");
2145 /* In this case it is just status - if that is
2146 an error send a bad character */
2147 if (tty->flip.count >= TTY_FLIPBUF_SIZE)
2148 tty_flip_buffer_push(tty);
2149 tty_insert_flip_char(tty, 0xff, error_flag);
2154 } /* "for(packet_offset=0..." */
2158 tty_flip_buffer_push(tty);
2160 if (packet_offset < urb->actual_length) {
2161 /* not completely processed - record progress */
2162 priv->rx_processed = packet_offset;
2163 dbg("%s - incomplete, %d bytes processed, %d remain",
2164 __func__, packet_offset,
2165 urb->actual_length - packet_offset);
2166 /* check if we were throttled while processing */
2167 spin_lock_irqsave(&priv->rx_lock, flags);
2168 if (priv->rx_flags & THROTTLED) {
2169 priv->rx_flags |= ACTUALLY_THROTTLED;
2170 spin_unlock_irqrestore(&priv->rx_lock, flags);
2171 dbg("%s - deferring remainder until unthrottled",
2175 spin_unlock_irqrestore(&priv->rx_lock, flags);
2176 /* if the port is closed stop trying to read */
2177 if (port->port.count > 0)
2178 /* delay processing of remainder */
2179 schedule_delayed_work(&priv->rx_work, 1);
2181 dbg("%s - port is closed", __func__);
2185 /* urb is completely processed */
2186 priv->rx_processed = 0;
2188 /* if the port is closed stop trying to read */
2189 if (port->port.count > 0) {
2190 /* Continue trying to always read */
2191 usb_fill_bulk_urb(port->read_urb, port->serial->dev,
2192 usb_rcvbulkpipe(port->serial->dev,
2193 port->bulk_in_endpointAddress),
2194 port->read_urb->transfer_buffer,
2195 port->read_urb->transfer_buffer_length,
2196 ftdi_read_bulk_callback, port);
2198 result = usb_submit_urb(port->read_urb, GFP_ATOMIC);
2201 "%s - failed resubmitting read urb, error %d\n",
2206 } /* ftdi_process_read */
2209 static void ftdi_break_ctl(struct tty_struct *tty, int break_state)
2211 struct usb_serial_port *port = tty->driver_data;
2212 struct ftdi_private *priv = usb_get_serial_port_data(port);
2213 __u16 urb_value = 0;
2216 /* break_state = -1 to turn on break, and 0 to turn off break */
2217 /* see drivers/char/tty_io.c to see it used */
2218 /* last_set_data_urb_value NEVER has the break bit set in it */
2221 urb_value = priv->last_set_data_urb_value | FTDI_SIO_SET_BREAK;
2223 urb_value = priv->last_set_data_urb_value;
2225 if (usb_control_msg(port->serial->dev,
2226 usb_sndctrlpipe(port->serial->dev, 0),
2227 FTDI_SIO_SET_DATA_REQUEST,
2228 FTDI_SIO_SET_DATA_REQUEST_TYPE,
2229 urb_value , priv->interface,
2230 buf, 0, WDR_TIMEOUT) < 0) {
2231 dev_err(&port->dev, "%s FAILED to enable/disable break state "
2232 "(state was %d)\n", __func__, break_state);
2235 dbg("%s break state is %d - urb is %d", __func__,
2236 break_state, urb_value);
2241 /* old_termios contains the original termios settings and tty->termios contains
2242 * the new setting to be used
2243 * WARNING: set_termios calls this with old_termios in kernel space
2246 static void ftdi_set_termios(struct tty_struct *tty,
2247 struct usb_serial_port *port, struct ktermios *old_termios)
2248 { /* ftdi_termios */
2249 struct usb_device *dev = port->serial->dev;
2250 struct ftdi_private *priv = usb_get_serial_port_data(port);
2251 struct ktermios *termios = tty->termios;
2252 unsigned int cflag = termios->c_cflag;
2253 __u16 urb_value; /* will hold the new flags */
2254 char buf[1]; /* Perhaps I should dynamically alloc this? */
2256 /* Added for xon/xoff support */
2257 unsigned int iflag = termios->c_iflag;
2258 unsigned char vstop;
2259 unsigned char vstart;
2261 dbg("%s", __func__);
2263 /* Force baud rate if this device requires it, unless it is set to
2265 if (priv->force_baud && ((termios->c_cflag & CBAUD) != B0)) {
2266 dbg("%s: forcing baud rate for this device", __func__);
2267 tty_encode_baud_rate(tty, priv->force_baud,
2271 /* Force RTS-CTS if this device requires it. */
2272 if (priv->force_rtscts) {
2273 dbg("%s: forcing rtscts for this device", __func__);
2274 termios->c_cflag |= CRTSCTS;
2277 cflag = termios->c_cflag;
2279 /* FIXME -For this cut I don't care if the line is really changing or
2280 not - so just do the change regardless - should be able to
2281 compare old_termios and tty->termios */
2282 /* NOTE These routines can get interrupted by
2283 ftdi_sio_read_bulk_callback - need to examine what this means -
2284 don't see any problems yet */
2286 /* Set number of data bits, parity, stop bits */
2288 termios->c_cflag &= ~CMSPAR;
2291 urb_value |= (cflag & CSTOPB ? FTDI_SIO_SET_DATA_STOP_BITS_2 :
2292 FTDI_SIO_SET_DATA_STOP_BITS_1);
2293 urb_value |= (cflag & PARENB ?
2294 (cflag & PARODD ? FTDI_SIO_SET_DATA_PARITY_ODD :
2295 FTDI_SIO_SET_DATA_PARITY_EVEN) :
2296 FTDI_SIO_SET_DATA_PARITY_NONE);
2297 if (cflag & CSIZE) {
2298 switch (cflag & CSIZE) {
2299 case CS5: urb_value |= 5; dbg("Setting CS5"); break;
2300 case CS6: urb_value |= 6; dbg("Setting CS6"); break;
2301 case CS7: urb_value |= 7; dbg("Setting CS7"); break;
2302 case CS8: urb_value |= 8; dbg("Setting CS8"); break;
2304 dev_err(&port->dev, "CSIZE was set but not CS5-CS8\n");
2308 /* This is needed by the break command since it uses the same command
2309 - but is or'ed with this value */
2310 priv->last_set_data_urb_value = urb_value;
2312 if (usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
2313 FTDI_SIO_SET_DATA_REQUEST,
2314 FTDI_SIO_SET_DATA_REQUEST_TYPE,
2315 urb_value , priv->interface,
2316 buf, 0, WDR_SHORT_TIMEOUT) < 0) {
2317 dev_err(&port->dev, "%s FAILED to set "
2318 "databits/stopbits/parity\n", __func__);
2321 /* Now do the baudrate */
2322 if ((cflag & CBAUD) == B0) {
2323 /* Disable flow control */
2324 if (usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
2325 FTDI_SIO_SET_FLOW_CTRL_REQUEST,
2326 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE,
2328 buf, 0, WDR_TIMEOUT) < 0) {
2330 "%s error from disable flowcontrol urb\n",
2333 /* Drop RTS and DTR */
2334 clear_mctrl(port, TIOCM_DTR | TIOCM_RTS);
2336 /* set the baudrate determined before */
2337 if (change_speed(tty, port))
2338 dev_err(&port->dev, "%s urb failed to set baudrate\n",
2340 /* Ensure RTS and DTR are raised when baudrate changed from 0 */
2341 if (!old_termios || (old_termios->c_cflag & CBAUD) == B0)
2342 set_mctrl(port, TIOCM_DTR | TIOCM_RTS);
2345 /* Set flow control */
2346 /* Note device also supports DTR/CD (ugh) and Xon/Xoff in hardware */
2347 if (cflag & CRTSCTS) {
2348 dbg("%s Setting to CRTSCTS flow control", __func__);
2349 if (usb_control_msg(dev,
2350 usb_sndctrlpipe(dev, 0),
2351 FTDI_SIO_SET_FLOW_CTRL_REQUEST,
2352 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE,
2353 0 , (FTDI_SIO_RTS_CTS_HS | priv->interface),
2354 buf, 0, WDR_TIMEOUT) < 0) {
2356 "urb failed to set to rts/cts flow control\n");
2363 * Check the IXOFF status in the iflag component of the
2364 * termios structure. If IXOFF is not set, the pre-xon/xoff
2367 if (iflag & IXOFF) {
2368 dbg("%s request to enable xonxoff iflag=%04x",
2370 /* Try to enable the XON/XOFF on the ftdi_sio
2371 * Set the vstart and vstop -- could have been done up
2372 * above where a lot of other dereferencing is done but
2373 * that would be very inefficient as vstart and vstop
2374 * are not always needed.
2376 vstart = termios->c_cc[VSTART];
2377 vstop = termios->c_cc[VSTOP];
2378 urb_value = (vstop << 8) | (vstart);
2380 if (usb_control_msg(dev,
2381 usb_sndctrlpipe(dev, 0),
2382 FTDI_SIO_SET_FLOW_CTRL_REQUEST,
2383 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE,
2384 urb_value , (FTDI_SIO_XON_XOFF_HS
2386 buf, 0, WDR_TIMEOUT) < 0) {
2387 dev_err(&port->dev, "urb failed to set to "
2388 "xon/xoff flow control\n");
2391 /* else clause to only run if cflag ! CRTSCTS and iflag
2392 * ! XOFF. CHECKME Assuming XON/XOFF handled by tty
2393 * stack - not by device */
2394 dbg("%s Turning off hardware flow control", __func__);
2395 if (usb_control_msg(dev,
2396 usb_sndctrlpipe(dev, 0),
2397 FTDI_SIO_SET_FLOW_CTRL_REQUEST,
2398 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE,
2400 buf, 0, WDR_TIMEOUT) < 0) {
2402 "urb failed to clear flow control\n");
2410 static int ftdi_tiocmget(struct tty_struct *tty, struct file *file)
2412 struct usb_serial_port *port = tty->driver_data;
2413 struct ftdi_private *priv = usb_get_serial_port_data(port);
2414 unsigned char buf[2];
2417 dbg("%s TIOCMGET", __func__);
2418 switch (priv->chip_type) {
2420 /* Request the status from the device */
2421 ret = usb_control_msg(port->serial->dev,
2422 usb_rcvctrlpipe(port->serial->dev, 0),
2423 FTDI_SIO_GET_MODEM_STATUS_REQUEST,
2424 FTDI_SIO_GET_MODEM_STATUS_REQUEST_TYPE,
2426 buf, 1, WDR_TIMEOUT);
2436 /* the 8U232AM returns a two byte value (the sio is a 1 byte
2437 value) - in the same format as the data returned from the in
2439 ret = usb_control_msg(port->serial->dev,
2440 usb_rcvctrlpipe(port->serial->dev, 0),
2441 FTDI_SIO_GET_MODEM_STATUS_REQUEST,
2442 FTDI_SIO_GET_MODEM_STATUS_REQUEST_TYPE,
2444 buf, 2, WDR_TIMEOUT);
2452 return (buf[0] & FTDI_SIO_DSR_MASK ? TIOCM_DSR : 0) |
2453 (buf[0] & FTDI_SIO_CTS_MASK ? TIOCM_CTS : 0) |
2454 (buf[0] & FTDI_SIO_RI_MASK ? TIOCM_RI : 0) |
2455 (buf[0] & FTDI_SIO_RLSD_MASK ? TIOCM_CD : 0) |
2459 static int ftdi_tiocmset(struct tty_struct *tty, struct file *file,
2460 unsigned int set, unsigned int clear)
2462 struct usb_serial_port *port = tty->driver_data;
2463 dbg("%s TIOCMSET", __func__);
2464 return update_mctrl(port, set, clear);
2468 static int ftdi_ioctl(struct tty_struct *tty, struct file *file,
2469 unsigned int cmd, unsigned long arg)
2471 struct usb_serial_port *port = tty->driver_data;
2472 struct ftdi_private *priv = usb_get_serial_port_data(port);
2474 dbg("%s cmd 0x%04x", __func__, cmd);
2476 /* Based on code from acm.c and others */
2479 case TIOCGSERIAL: /* gets serial port data */
2480 return get_serial_info(port,
2481 (struct serial_struct __user *) arg);
2483 case TIOCSSERIAL: /* sets serial port data */
2484 return set_serial_info(tty, port,
2485 (struct serial_struct __user *) arg);
2488 * Wait for any of the 4 modem inputs (DCD,RI,DSR,CTS) to change
2489 * - mask passed in arg for lines of interest
2490 * (use |'ed TIOCM_RNG/DSR/CD/CTS for masking)
2491 * Caller should use TIOCGICOUNT to see which one it was.
2493 * This code is borrowed from linux/drivers/char/serial.c
2496 while (priv != NULL) {
2497 interruptible_sleep_on(&priv->delta_msr_wait);
2498 /* see if a signal did it */
2499 if (signal_pending(current))
2500 return -ERESTARTSYS;
2502 char diff = priv->diff_status;
2505 return -EIO; /* no change => error */
2507 /* Consume all events */
2508 priv->diff_status = 0;
2510 /* Return 0 if caller wanted to know about
2512 if (((arg & TIOCM_RNG) && (diff & FTDI_RS0_RI)) ||
2513 ((arg & TIOCM_DSR) && (diff & FTDI_RS0_DSR)) ||
2514 ((arg & TIOCM_CD) && (diff & FTDI_RS0_RLSD)) ||
2515 ((arg & TIOCM_CTS) && (diff & FTDI_RS0_CTS))) {
2519 * Otherwise caller can't care less about what
2520 * happened,and so we continue to wait for more
2529 /* This is not necessarily an error - turns out the higher layers
2530 * will do some ioctls themselves (see comment above)
2532 dbg("%s arg not supported - it was 0x%04x - check /usr/include/asm/ioctls.h", __func__, cmd);
2533 return -ENOIOCTLCMD;
2536 static void ftdi_throttle(struct tty_struct *tty)
2538 struct usb_serial_port *port = tty->driver_data;
2539 struct ftdi_private *priv = usb_get_serial_port_data(port);
2540 unsigned long flags;
2542 dbg("%s - port %d", __func__, port->number);
2544 spin_lock_irqsave(&priv->rx_lock, flags);
2545 priv->rx_flags |= THROTTLED;
2546 spin_unlock_irqrestore(&priv->rx_lock, flags);
2550 static void ftdi_unthrottle(struct tty_struct *tty)
2552 struct usb_serial_port *port = tty->driver_data;
2553 struct ftdi_private *priv = usb_get_serial_port_data(port);
2554 int actually_throttled;
2555 unsigned long flags;
2557 dbg("%s - port %d", __func__, port->number);
2559 spin_lock_irqsave(&priv->rx_lock, flags);
2560 actually_throttled = priv->rx_flags & ACTUALLY_THROTTLED;
2561 priv->rx_flags &= ~(THROTTLED | ACTUALLY_THROTTLED);
2562 spin_unlock_irqrestore(&priv->rx_lock, flags);
2564 if (actually_throttled)
2565 schedule_delayed_work(&priv->rx_work, 0);
2568 static int __init ftdi_init(void)
2572 dbg("%s", __func__);
2573 if (vendor > 0 && product > 0) {
2574 /* Add user specified VID/PID to reserved element of table. */
2576 for (i = 0; id_table_combined[i].idVendor; i++)
2578 id_table_combined[i].match_flags = USB_DEVICE_ID_MATCH_DEVICE;
2579 id_table_combined[i].idVendor = vendor;
2580 id_table_combined[i].idProduct = product;
2582 retval = usb_serial_register(&ftdi_sio_device);
2584 goto failed_sio_register;
2585 retval = usb_register(&ftdi_driver);
2587 goto failed_usb_register;
2589 printk(KERN_INFO KBUILD_MODNAME ": " DRIVER_VERSION ":"
2592 failed_usb_register:
2593 usb_serial_deregister(&ftdi_sio_device);
2594 failed_sio_register:
2599 static void __exit ftdi_exit(void)
2602 dbg("%s", __func__);
2604 usb_deregister(&ftdi_driver);
2605 usb_serial_deregister(&ftdi_sio_device);
2610 module_init(ftdi_init);
2611 module_exit(ftdi_exit);
2613 MODULE_AUTHOR(DRIVER_AUTHOR);
2614 MODULE_DESCRIPTION(DRIVER_DESC);
2615 MODULE_LICENSE("GPL");
2617 module_param(debug, bool, S_IRUGO | S_IWUSR);
2618 MODULE_PARM_DESC(debug, "Debug enabled or not");
2619 module_param(vendor, ushort, 0);
2620 MODULE_PARM_DESC(vendor, "User specified vendor ID (default="
2621 __MODULE_STRING(FTDI_VID)")");
2622 module_param(product, ushort, 0);
2623 MODULE_PARM_DESC(product, "User specified product ID");