2 # USB Gadget support on a system involves
3 # (a) a peripheral controller, and
4 # (b) the gadget driver using it.
6 # NOTE: Gadget support ** DOES NOT ** depend on host-side CONFIG_USB !!
8 # - Host systems (like PCs) need CONFIG_USB (with "A" jacks).
9 # - Peripherals (like PDAs) need CONFIG_USB_GADGET (with "B" jacks).
10 # - Some systems have both kinds of controllers.
12 # With help from a special transceiver and a "Mini-AB" jack, systems with
13 # both kinds of controller can also support "USB On-the-Go" (CONFIG_USB_OTG).
17 tristate "USB Gadget Support"
20 USB is a master/slave protocol, organized with one master
21 host (such as a PC) controlling up to 127 peripheral devices.
22 The USB hardware is asymmetric, which makes it easier to set up:
23 you can't connect a "to-the-host" connector to a peripheral.
25 Linux can run in the host, or in the peripheral. In both cases
26 you need a low level bus controller driver, and some software
27 talking to it. Peripheral controllers are often discrete silicon,
28 or are integrated with the CPU in a microcontroller. The more
29 familiar host side controllers have names like "EHCI", "OHCI",
30 or "UHCI", and are usually integrated into southbridges on PC
33 Enable this configuration option if you want to run Linux inside
34 a USB peripheral device. Configure one hardware driver for your
35 peripheral/device side bus controller, and a "gadget driver" for
36 your peripheral protocol. (If you use modular gadget drivers,
37 you may configure more than one.)
39 If in doubt, say "N" and don't enable these drivers; most people
40 don't have this kind of hardware (except maybe inside Linux PDAs).
42 For more information, see <http://www.linux-usb.org/gadget> and
43 the kernel DocBook documentation for this API.
47 config USB_GADGET_DEBUG
48 boolean "Debugging messages (DEVELOPMENT)"
49 depends on DEBUG_KERNEL
51 Many controller and gadget drivers will print some debugging
52 messages if you use this option to ask for those messages.
54 Avoid enabling these messages, even if you're actively
55 debugging such a driver. Many drivers will emit so many
56 messages that the driver timings are affected, which will
57 either create new failure modes or remove the one you're
58 trying to track down. Never enable these messages for a
61 config USB_GADGET_DEBUG_FILES
62 boolean "Debugging information files (DEVELOPMENT)"
65 Some of the drivers in the "gadget" framework can expose
66 debugging information in files such as /proc/driver/udc
67 (for a peripheral controller). The information in these
68 files may help when you're troubleshooting or bringing up a
69 driver on a new board. Enable these files by choosing "Y"
70 here. If in doubt, or to conserve kernel memory, say "N".
72 config USB_GADGET_DEBUG_FS
73 boolean "Debugging information files in debugfs (DEVELOPMENT)"
76 Some of the drivers in the "gadget" framework can expose
77 debugging information in files under /sys/kernel/debug/.
78 The information in these files may help when you're
79 troubleshooting or bringing up a driver on a new board.
80 Enable these files by choosing "Y" here. If in doubt, or
81 to conserve kernel memory, say "N".
83 config USB_GADGET_VBUS_DRAW
84 int "Maximum VBUS Power usage (2-500 mA)"
88 Some devices need to draw power from USB when they are
89 configured, perhaps to operate circuitry or to recharge
90 batteries. This is in addition to any local power supply,
91 such as an AC adapter or batteries.
93 Enter the maximum power your device draws through USB, in
94 milliAmperes. The permitted range of values is 2 - 500 mA;
95 0 mA would be legal, but can make some hosts misbehave.
97 This value will be used except for system-specific gadget
98 drivers that have more specific information.
100 config USB_GADGET_STORAGE_NUM_BUFFERS
101 int "Number of storage pipeline buffers"
105 Usually 2 buffers are enough to establish a good buffering
106 pipeline. The number may be increased in order to compensate
107 for a bursty VFS behaviour. For instance there may be CPU wake up
108 latencies that makes the VFS to appear bursty in a system with
109 an CPU on-demand governor. Especially if DMA is doing IO to
110 offload the CPU. In this case the CPU will go into power
111 save often and spin up occasionally to move data within VFS.
112 If selecting USB_GADGET_DEBUG_FILES this value may be set by
113 a module parameter as well.
117 # USB Peripheral Controller Support
119 # The order here is alphabetical, except that integrated controllers go
120 # before discrete ones so they will be the initial/default value:
121 # - integrated/SOC controllers first
122 # - licensed IP used in both SOC and discrete versions
123 # - discrete ones (including all PCI-only controllers)
124 # - debug/dummy gadget+hcd is last.
126 menu "USB Peripheral Controller"
129 # Integrated controllers
133 tristate "Atmel AT91 USB Device Port"
136 Many Atmel AT91 processors (such as the AT91RM2000) have a
137 full speed USB Device Port with support for five configurable
138 endpoints (plus endpoint zero).
140 Say "y" to link the driver statically, or "m" to build a
141 dynamically linked module called "at91_udc" and force all
142 gadget drivers to also be dynamically linked.
145 tristate "LPC32XX USB Peripheral Controller"
146 depends on ARCH_LPC32XX
150 This option selects the USB device controller in the LPC32xx SoC.
152 Say "y" to link the driver statically, or "m" to build a
153 dynamically linked module called "lpc32xx_udc" and force all
154 gadget drivers to also be dynamically linked.
156 config USB_ATMEL_USBA
157 tristate "Atmel USBA"
158 depends on AVR32 || ARCH_AT91
160 USBA is the integrated high-speed USB Device controller on
161 the AT32AP700x, some AT91SAM9 and AT91CAP9 processors from Atmel.
163 config USB_BCM63XX_UDC
164 tristate "Broadcom BCM63xx Peripheral Controller"
167 Many Broadcom BCM63xx chipsets (such as the BCM6328) have a
168 high speed USB Device Port with support for four fixed endpoints
169 (plus endpoint zero).
171 Say "y" to link the driver statically, or "m" to build a
172 dynamically linked module called "bcm63xx_udc".
175 tristate "Freescale Highspeed USB DR Peripheral Controller"
176 depends on FSL_SOC || ARCH_MXC
177 select USB_FSL_MPH_DR_OF if OF
179 Some of Freescale PowerPC and i.MX processors have a High Speed
180 Dual-Role(DR) USB controller, which supports device mode.
182 The number of programmable endpoints is different through
185 Say "y" to link the driver statically, or "m" to build a
186 dynamically linked module called "fsl_usb2_udc" and force
187 all gadget drivers to also be dynamically linked.
190 tristate "Faraday FUSB300 USB Peripheral Controller"
191 depends on !PHYS_ADDR_T_64BIT
193 Faraday usb device controller FUSB300 driver
195 config USB_FOTG210_UDC
196 tristate "Faraday FOTG210 USB Peripheral Controller"
198 Faraday USB2.0 OTG controller which can be configured as
199 high speed or full speed USB device. This driver supppors
200 Bulk Transfer so far.
202 Say "y" to link the driver statically, or "m" to build a
203 dynamically linked module called "fotg210_udc".
206 tristate "OMAP USB Device Controller"
207 depends on ARCH_OMAP1
209 select ISP1301_OMAP if MACH_OMAP_H2 || MACH_OMAP_H3 || MACH_OMAP_H4_OTG
211 Many Texas Instruments OMAP processors have flexible full
212 speed USB device controllers, with support for up to 30
213 endpoints (plus endpoint zero). This driver supports the
214 controller in the OMAP 1611, and should work with controllers
215 in other OMAP processors too, given minor tweaks.
217 Say "y" to link the driver statically, or "m" to build a
218 dynamically linked module called "omap_udc" and force all
219 gadget drivers to also be dynamically linked.
222 tristate "PXA 25x or IXP 4xx"
223 depends on (ARCH_PXA && PXA25x) || ARCH_IXP4XX
225 Intel's PXA 25x series XScale ARM-5TE processors include
226 an integrated full speed USB 1.1 device controller. The
227 controller in the IXP 4xx series is register-compatible.
229 It has fifteen fixed-function endpoints, as well as endpoint
230 zero (for control transfers).
232 Say "y" to link the driver statically, or "m" to build a
233 dynamically linked module called "pxa25x_udc" and force all
234 gadget drivers to also be dynamically linked.
236 # if there's only one gadget driver, using only two bulk endpoints,
237 # don't waste memory for the other endpoints
238 config USB_PXA25X_SMALL
239 depends on USB_PXA25X
241 default n if USB_ETH_RNDIS
242 default y if USB_ZERO
244 default y if USB_G_SERIAL
247 tristate "Renesas R8A66597 USB Peripheral Controller"
249 R8A66597 is a discrete USB host and peripheral controller chip that
250 supports both full and high speed USB 2.0 data transfers.
251 It has nine configurable endpoints, and endpoint zero.
253 Say "y" to link the driver statically, or "m" to build a
254 dynamically linked module called "r8a66597_udc" and force all
255 gadget drivers to also be dynamically linked.
257 config USB_RENESAS_USBHS_UDC
258 tristate 'Renesas USBHS controller'
259 depends on USB_RENESAS_USBHS
261 Renesas USBHS is a discrete USB host and peripheral controller chip
262 that supports both full and high speed USB 2.0 data transfers.
263 It has nine or more configurable endpoints, and endpoint zero.
265 Say "y" to link the driver statically, or "m" to build a
266 dynamically linked module called "renesas_usbhs" and force all
267 gadget drivers to also be dynamically linked.
272 Intel's PXA 27x series XScale ARM v5TE processors include
273 an integrated full speed USB 1.1 device controller.
275 It has up to 23 endpoints, as well as endpoint zero (for
278 Say "y" to link the driver statically, or "m" to build a
279 dynamically linked module called "pxa27x_udc" and force all
280 gadget drivers to also be dynamically linked.
283 tristate "S3C HS/OtG USB Device controller"
284 depends on S3C_DEV_USB_HSOTG
286 The Samsung S3C64XX USB2.0 high-speed gadget controller
287 integrated into the S3C64XX series SoC.
290 tristate "Freescale i.MX1 USB Peripheral Controller"
294 Freescale's i.MX1 includes an integrated full speed
295 USB 1.1 device controller.
297 It has Six fixed-function endpoints, as well as endpoint
298 zero (for control transfers).
300 Say "y" to link the driver statically, or "m" to build a
301 dynamically linked module called "imx_udc" and force all
302 gadget drivers to also be dynamically linked.
305 tristate "S3C2410 USB Device Controller"
306 depends on ARCH_S3C24XX
308 Samsung's S3C2410 is an ARM-4 processor with an integrated
309 full speed USB 1.1 device controller. It has 4 configurable
310 endpoints, as well as endpoint zero (for control transfers).
312 This driver has been tested on the S3C2410, S3C2412, and
315 config USB_S3C2410_DEBUG
316 boolean "S3C2410 udc debug messages"
317 depends on USB_S3C2410
320 tristate "S3C2416, S3C2443 and S3C2450 USB Device Controller"
321 depends on ARCH_S3C24XX
323 Samsung's S3C2416, S3C2443 and S3C2450 is an ARM9 based SoC
324 integrated with dual speed USB 2.0 device controller. It has
325 8 endpoints, as well as endpoint zero.
327 This driver has been tested on S3C2416 and S3C2450 processors.
330 tristate "Marvell USB2.0 Device Controller"
331 depends on GENERIC_HARDIRQS
333 Marvell Socs (including PXA and MMP series) include a high speed
334 USB2.0 OTG controller, which can be configured as high speed or
335 full speed USB peripheral.
338 tristate "MARVELL PXA2128 USB 3.0 controller"
340 MARVELL PXA2128 Processor series include a super speed USB3.0 device
341 controller, which support super speed USB peripheral.
344 # Controllers available in both integrated and discrete versions
348 tristate "Renesas M66592 USB Peripheral Controller"
350 M66592 is a discrete USB peripheral controller chip that
351 supports both full and high speed USB 2.0 data transfers.
352 It has seven configurable endpoints, and endpoint zero.
354 Say "y" to link the driver statically, or "m" to build a
355 dynamically linked module called "m66592_udc" and force all
356 gadget drivers to also be dynamically linked.
359 # Controllers available only in discrete form (and all PCI controllers)
362 config USB_AMD5536UDC
363 tristate "AMD5536 UDC"
366 The AMD5536 UDC is part of the AMD Geode CS5536, an x86 southbridge.
367 It is a USB Highspeed DMA capable USB device controller. Beside ep0
368 it provides 4 IN and 4 OUT endpoints (bulk or interrupt type).
369 The UDC port supports OTG operation, and may be used as a host port
370 if it's not being used to implement peripheral or OTG roles.
372 Say "y" to link the driver statically, or "m" to build a
373 dynamically linked module called "amd5536udc" and force all
374 gadget drivers to also be dynamically linked.
377 tristate "Freescale QE/CPM USB Device Controller"
378 depends on FSL_SOC && (QUICC_ENGINE || CPM)
380 Some of Freescale PowerPC processors have a Full Speed
381 QE/CPM2 USB controller, which support device mode with 4
382 programmable endpoints. This driver supports the
383 controller in the MPC8360 and MPC8272, and should work with
384 controllers having QE or CPM2, given minor tweaks.
386 Set CONFIG_USB_GADGET to "m" to build this driver as a
387 dynamically linked module called "fsl_qe_udc".
390 tristate "PLX NET2272"
392 PLX NET2272 is a USB peripheral controller which supports
393 both full and high speed USB 2.0 data transfers.
395 It has three configurable endpoints, as well as endpoint zero
396 (for control transfer).
397 Say "y" to link the driver statically, or "m" to build a
398 dynamically linked module called "net2272" and force all
399 gadget drivers to also be dynamically linked.
401 config USB_NET2272_DMA
402 boolean "Support external DMA controller"
403 depends on USB_NET2272
405 The NET2272 part can optionally support an external DMA
406 controller, but your board has to have support in the
409 If unsure, say "N" here. The driver works fine in PIO mode.
412 tristate "NetChip 228x"
415 NetChip 2280 / 2282 is a PCI based USB peripheral controller which
416 supports both full and high speed USB 2.0 data transfers.
418 It has six configurable endpoints, as well as endpoint zero
419 (for control transfers) and several endpoints with dedicated
422 Say "y" to link the driver statically, or "m" to build a
423 dynamically linked module called "net2280" and force all
424 gadget drivers to also be dynamically linked.
427 tristate "Toshiba TC86C001 'Goku-S'"
430 The Toshiba TC86C001 is a PCI device which includes controllers
431 for full speed USB devices, IDE, I2C, SIO, plus a USB host (OHCI).
433 The device controller has three configurable (bulk or interrupt)
434 endpoints, plus endpoint zero (for control transfers).
436 Say "y" to link the driver statically, or "m" to build a
437 dynamically linked module called "goku_udc" and to force all
438 gadget drivers to also be dynamically linked.
441 tristate "Intel EG20T PCH/LAPIS Semiconductor IOH(ML7213/ML7831) UDC"
442 depends on PCI && GENERIC_HARDIRQS
444 This is a USB device driver for EG20T PCH.
445 EG20T PCH is the platform controller hub that is used in Intel's
446 general embedded platform. EG20T PCH has USB device interface.
447 Using this interface, it is able to access system devices connected
449 This driver enables USB device function.
450 USB device is a USB peripheral controller which
451 supports both full and high speed USB 2.0 data transfers.
452 This driver supports both control transfer and bulk transfer modes.
453 This driver dose not support interrupt transfer or isochronous
456 This driver also can be used for LAPIS Semiconductor's ML7213 which is
457 for IVI(In-Vehicle Infotainment) use.
458 ML7831 is for general purpose use.
459 ML7213/ML7831 is companion chip for Intel Atom E6xx series.
460 ML7213/ML7831 is completely compatible for Intel EG20T PCH.
463 # LAST -- dummy/emulated controller
467 tristate "Dummy HCD (DEVELOPMENT)"
468 depends on USB=y || (USB=m && USB_GADGET=m)
470 This host controller driver emulates USB, looping all data transfer
471 requests back to a USB "gadget driver" in the same host. The host
472 side is the master; the gadget side is the slave. Gadget drivers
473 can be high, full, or low speed; and they have access to endpoints
474 like those from NET2280, PXA2xx, or SA1100 hardware.
476 This may help in some stages of creating a driver to embed in a
477 Linux device, since it lets you debug several parts of the gadget
478 driver without its hardware or drivers being involved.
480 Since such a gadget side driver needs to interoperate with a host
481 side Linux-USB device driver, this may help to debug both sides
482 of a USB protocol stack.
484 Say "y" to link the driver statically, or "m" to build a
485 dynamically linked module called "dummy_hcd" and force all
486 gadget drivers to also be dynamically linked.
488 # NOTE: Please keep dummy_hcd LAST so that "real hardware" appears
489 # first and will be selected by default.
497 # composite based drivers
498 config USB_LIBCOMPOSITE
501 depends on USB_GADGET
543 tristate "USB Gadget Drivers"
546 A Linux "Gadget Driver" talks to the USB Peripheral Controller
547 driver through the abstract "gadget" API. Some other operating
548 systems call these "client" drivers, of which "class drivers"
549 are a subset (implementing a USB device class specification).
550 A gadget driver implements one or more USB functions using
551 the peripheral hardware.
553 Gadget drivers are hardware-neutral, or "platform independent",
554 except that they sometimes must understand quirks or limitations
555 of the particular controllers they work with. For example, when
556 a controller doesn't support alternate configurations or provide
557 enough of the right types of endpoints, the gadget driver might
558 not be able work with that controller, or might need to implement
559 a less common variant of a device class protocol.
561 # this first set of drivers all depend on bulk-capable hardware.
564 tristate "USB functions configurable through configfs"
565 select USB_LIBCOMPOSITE
567 A Linux USB "gadget" can be set up through configfs.
568 If this is the case, the USB functions (which from the host's
569 perspective are seen as interfaces) and configurations are
570 specified simply by creating appropriate directories in configfs.
571 Associating functions with configurations is done by creating
572 appropriate symbolic links.
573 For more information see Documentation/usb/gadget-configfs.txt.
575 config USB_CONFIGFS_SERIAL
576 boolean "Generic serial bulk in/out"
577 depends on USB_CONFIGFS
582 The function talks to the Linux-USB generic serial driver.
584 config USB_CONFIGFS_ACM
585 boolean "Abstract Control Model (CDC ACM)"
586 depends on USB_CONFIGFS
591 ACM serial link. This function can be used to interoperate with
592 MS-Windows hosts or with the Linux-USB "cdc-acm" driver.
594 config USB_CONFIGFS_OBEX
595 boolean "Object Exchange Model (CDC OBEX)"
596 depends on USB_CONFIGFS
601 You will need a user space OBEX server talking to /dev/ttyGS*,
602 since the kernel itself doesn't implement the OBEX protocol.
604 config USB_CONFIGFS_NCM
605 boolean "Network Control Model (CDC NCM)"
606 depends on USB_CONFIGFS
611 NCM is an advanced protocol for Ethernet encapsulation, allows
612 grouping of several ethernet frames into one USB transfer and
613 different alignment possibilities.
615 config USB_CONFIGFS_ECM
616 boolean "Ethernet Control Model (CDC ECM)"
617 depends on USB_CONFIGFS
622 The "Communication Device Class" (CDC) Ethernet Control Model.
623 That protocol is often avoided with pure Ethernet adapters, in
624 favor of simpler vendor-specific hardware, but is widely
625 supported by firmware for smart network devices.
627 config USB_CONFIGFS_ECM_SUBSET
628 boolean "Ethernet Control Model (CDC ECM) subset"
629 depends on USB_CONFIGFS
634 On hardware that can't implement the full protocol,
635 a simple CDC subset is used, placing fewer demands on USB.
637 config USB_CONFIGFS_RNDIS
639 depends on USB_CONFIGFS
644 Microsoft Windows XP bundles the "Remote NDIS" (RNDIS) protocol,
645 and Microsoft provides redistributable binary RNDIS drivers for
646 older versions of Windows.
648 To make MS-Windows work with this, use Documentation/usb/linux.inf
649 as the "driver info file". For versions of MS-Windows older than
650 XP, you'll need to download drivers from Microsoft's website; a URL
651 is given in comments found in that info file.
653 config USB_CONFIGFS_EEM
654 bool "Ethernet Emulation Model (EEM)"
655 depends on USB_CONFIGFS
660 CDC EEM is a newer USB standard that is somewhat simpler than CDC ECM
661 and therefore can be supported by more hardware. Technically ECM and
662 EEM are designed for different applications. The ECM model extends
663 the network interface to the target (e.g. a USB cable modem), and the
664 EEM model is for mobile devices to communicate with hosts using
665 ethernet over USB. For Linux gadgets, however, the interface with
666 the host is the same (a usbX device), so the differences are minimal.
668 config USB_CONFIGFS_PHONET
669 boolean "Phonet protocol"
670 depends on USB_CONFIGFS
676 The Phonet protocol implementation for USB device.
679 tristate "Gadget Zero (DEVELOPMENT)"
680 select USB_LIBCOMPOSITE
683 Gadget Zero is a two-configuration device. It either sinks and
684 sources bulk data; or it loops back a configurable number of
685 transfers. It also implements control requests, for "chapter 9"
686 conformance. The driver needs only two bulk-capable endpoints, so
687 it can work on top of most device-side usb controllers. It's
688 useful for testing, and is also a working example showing how
689 USB "gadget drivers" can be written.
691 Make this be the first driver you try using on top of any new
692 USB peripheral controller driver. Then you can use host-side
693 test software, like the "usbtest" driver, to put your hardware
694 and its driver through a basic set of functional tests.
696 Gadget Zero also works with the host-side "usb-skeleton" driver,
697 and with many kinds of host-side test software. You may need
698 to tweak product and vendor IDs before host software knows about
699 this device, and arrange to select an appropriate configuration.
701 Say "y" to link the driver statically, or "m" to build a
702 dynamically linked module called "g_zero".
704 config USB_ZERO_HNPTEST
705 boolean "HNP Test Device"
706 depends on USB_ZERO && USB_OTG
708 You can configure this device to enumerate using the device
709 identifiers of the USB-OTG test device. That means that when
710 this gadget connects to another OTG device, with this one using
711 the "B-Peripheral" role, that device will use HNP to let this
712 one serve as the USB host instead (in the "B-Host" role).
715 tristate "Audio Gadget"
717 select USB_LIBCOMPOSITE
720 This Gadget Audio driver is compatible with USB Audio Class
721 specification 2.0. It implements 1 AudioControl interface,
722 1 AudioStreaming Interface each for USB-OUT and USB-IN.
723 Number of channels, sample rate and sample size can be
724 specified as module parameters.
725 This driver doesn't expect any real Audio codec to be present
726 on the device - the audio streams are simply sinked to and
727 sourced from a virtual ALSA sound card created. The user-space
728 application may choose to do whatever it wants with the data
729 received from the USB Host and choose to provide whatever it
730 wants as audio data to the USB Host.
732 Say "y" to link the driver statically, or "m" to build a
733 dynamically linked module called "g_audio".
736 bool "UAC 1.0 (Legacy)"
739 If you instead want older UAC Spec-1.0 driver that also has audio
740 paths hardwired to the Audio codec chip on-board and doesn't work
744 tristate "Ethernet Gadget (with CDC Ethernet support)"
746 select USB_LIBCOMPOSITE
753 This driver implements Ethernet style communication, in one of
756 - The "Communication Device Class" (CDC) Ethernet Control Model.
757 That protocol is often avoided with pure Ethernet adapters, in
758 favor of simpler vendor-specific hardware, but is widely
759 supported by firmware for smart network devices.
761 - On hardware can't implement that protocol, a simple CDC subset
762 is used, placing fewer demands on USB.
764 - CDC Ethernet Emulation Model (EEM) is a newer standard that has
765 a simpler interface that can be used by more USB hardware.
767 RNDIS support is an additional option, more demanding than than
770 Within the USB device, this gadget driver exposes a network device
771 "usbX", where X depends on what other networking devices you have.
772 Treat it like a two-node Ethernet link: host, and gadget.
774 The Linux-USB host-side "usbnet" driver interoperates with this
775 driver, so that deep I/O queues can be supported. On 2.4 kernels,
776 use "CDCEther" instead, if you're using the CDC option. That CDC
777 mode should also interoperate with standard CDC Ethernet class
778 drivers on other host operating systems.
780 Say "y" to link the driver statically, or "m" to build a
781 dynamically linked module called "g_ether".
786 select USB_LIBCOMPOSITE
790 Microsoft Windows XP bundles the "Remote NDIS" (RNDIS) protocol,
791 and Microsoft provides redistributable binary RNDIS drivers for
792 older versions of Windows.
794 If you say "y" here, the Ethernet gadget driver will try to provide
795 a second device configuration, supporting RNDIS to talk to such
798 To make MS-Windows work with this, use Documentation/usb/linux.inf
799 as the "driver info file". For versions of MS-Windows older than
800 XP, you'll need to download drivers from Microsoft's website; a URL
801 is given in comments found in that info file.
804 bool "Ethernet Emulation Model (EEM) support"
806 select USB_LIBCOMPOSITE
810 CDC EEM is a newer USB standard that is somewhat simpler than CDC ECM
811 and therefore can be supported by more hardware. Technically ECM and
812 EEM are designed for different applications. The ECM model extends
813 the network interface to the target (e.g. a USB cable modem), and the
814 EEM model is for mobile devices to communicate with hosts using
815 ethernet over USB. For Linux gadgets, however, the interface with
816 the host is the same (a usbX device), so the differences are minimal.
818 If you say "y" here, the Ethernet gadget driver will use the EEM
819 protocol rather than ECM. If unsure, say "n".
822 tristate "Network Control Model (NCM) support"
824 select USB_LIBCOMPOSITE
829 This driver implements USB CDC NCM subclass standard. NCM is
830 an advanced protocol for Ethernet encapsulation, allows grouping
831 of several ethernet frames into one USB transfer and different
832 alignment possibilities.
834 Say "y" to link the driver statically, or "m" to build a
835 dynamically linked module called "g_ncm".
838 tristate "Gadget Filesystem"
840 This driver provides a filesystem based API that lets user mode
841 programs implement a single-configuration USB device, including
842 endpoint I/O and control requests that don't relate to enumeration.
843 All endpoints, transfer speeds, and transfer types supported by
844 the hardware are available, through read() and write() calls.
846 Say "y" to link the driver statically, or "m" to build a
847 dynamically linked module called "gadgetfs".
849 config USB_FUNCTIONFS
850 tristate "Function Filesystem"
851 select USB_LIBCOMPOSITE
852 select USB_FUNCTIONFS_GENERIC if !(USB_FUNCTIONFS_ETH || USB_FUNCTIONFS_RNDIS)
854 The Function Filesystem (FunctionFS) lets one create USB
855 composite functions in user space in the same way GadgetFS
856 lets one create USB gadgets in user space. This allows creation
857 of composite gadgets such that some of the functions are
858 implemented in kernel space (for instance Ethernet, serial or
859 mass storage) and other are implemented in user space.
861 If you say "y" or "m" here you will be able what kind of
862 configurations the gadget will provide.
864 Say "y" to link the driver statically, or "m" to build
865 a dynamically linked module called "g_ffs".
867 config USB_FUNCTIONFS_ETH
868 bool "Include configuration with CDC ECM (Ethernet)"
869 depends on USB_FUNCTIONFS && NET
872 Include a configuration with CDC ECM function (Ethernet) and the
875 config USB_FUNCTIONFS_RNDIS
876 bool "Include configuration with RNDIS (Ethernet)"
877 depends on USB_FUNCTIONFS && NET
881 Include a configuration with RNDIS function (Ethernet) and the Filesystem.
883 config USB_FUNCTIONFS_GENERIC
884 bool "Include 'pure' configuration"
885 depends on USB_FUNCTIONFS
887 Include a configuration with the Function Filesystem alone with
888 no Ethernet interface.
890 config USB_MASS_STORAGE
891 tristate "Mass Storage Gadget"
893 select USB_LIBCOMPOSITE
895 The Mass Storage Gadget acts as a USB Mass Storage disk drive.
896 As its storage repository it can use a regular file or a block
897 device (in much the same way as the "loop" device driver),
898 specified as a module parameter or sysfs option.
900 This driver is a replacement for now removed File-backed
901 Storage Gadget (g_file_storage).
903 Say "y" to link the driver statically, or "m" to build
904 a dynamically linked module called "g_mass_storage".
906 config USB_GADGET_TARGET
907 tristate "USB Gadget Target Fabric Module"
908 depends on TARGET_CORE
909 select USB_LIBCOMPOSITE
911 This fabric is an USB gadget. Two USB protocols are supported that is
912 BBB or BOT (Bulk Only Transport) and UAS (USB Attached SCSI). BOT is
913 advertised on alternative interface 0 (primary) and UAS is on
914 alternative interface 1. Both protocols can work on USB2.0 and USB3.0.
915 UAS utilizes the USB 3.0 feature called streams support.
918 tristate "Serial Gadget (with CDC ACM and CDC OBEX support)"
924 select USB_LIBCOMPOSITE
926 The Serial Gadget talks to the Linux-USB generic serial driver.
927 This driver supports a CDC-ACM module option, which can be used
928 to interoperate with MS-Windows hosts or with the Linux-USB
931 This driver also supports a CDC-OBEX option. You will need a
932 user space OBEX server talking to /dev/ttyGS*, since the kernel
933 itself doesn't implement the OBEX protocol.
935 Say "y" to link the driver statically, or "m" to build a
936 dynamically linked module called "g_serial".
938 For more information, see Documentation/usb/gadget_serial.txt
939 which includes instructions and a "driver info file" needed to
940 make MS-Windows work with CDC ACM.
942 config USB_MIDI_GADGET
943 tristate "MIDI Gadget"
945 select USB_LIBCOMPOSITE
948 The MIDI Gadget acts as a USB Audio device, with one MIDI
949 input and one MIDI output. These MIDI jacks appear as
950 a sound "card" in the ALSA sound system. Other MIDI
951 connections can then be made on the gadget system, using
952 ALSA's aconnect utility etc.
954 Say "y" to link the driver statically, or "m" to build a
955 dynamically linked module called "g_midi".
958 tristate "Printer Gadget"
959 select USB_LIBCOMPOSITE
961 The Printer Gadget channels data between the USB host and a
962 userspace program driving the print engine. The user space
963 program reads and writes the device file /dev/g_printer to
964 receive or send printer data. It can use ioctl calls to
965 the device file to get or set printer status.
967 Say "y" to link the driver statically, or "m" to build a
968 dynamically linked module called "g_printer".
970 For more information, see Documentation/usb/gadget_printer.txt
971 which includes sample code for accessing the device file.
975 config USB_CDC_COMPOSITE
976 tristate "CDC Composite Device (Ethernet and ACM)"
978 select USB_LIBCOMPOSITE
984 This driver provides two functions in one configuration:
985 a CDC Ethernet (ECM) link, and a CDC ACM (serial port) link.
987 This driver requires four bulk and two interrupt endpoints,
988 plus the ability to handle altsettings. Not all peripheral
989 controllers are that capable.
991 Say "y" to link the driver statically, or "m" to build a
992 dynamically linked module.
995 tristate "Nokia composite gadget"
997 select USB_LIBCOMPOSITE
1005 The Nokia composite gadget provides support for acm, obex
1006 and phonet in only one composite gadget driver.
1008 It's only really useful for N900 hardware. If you're building
1009 a kernel for N900, say Y or M here. If unsure, say N.
1012 tristate "CDC Composite Device (ACM and mass storage)"
1014 select USB_LIBCOMPOSITE
1018 This driver provides two functions in one configuration:
1019 a mass storage, and a CDC ACM (serial port) link.
1021 Say "y" to link the driver statically, or "m" to build a
1022 dynamically linked module called "g_acm_ms".
1025 tristate "Multifunction Composite Gadget"
1026 depends on BLOCK && NET
1027 select USB_G_MULTI_CDC if !USB_G_MULTI_RNDIS
1028 select USB_LIBCOMPOSITE
1034 The Multifunction Composite Gadget provides Ethernet (RNDIS
1035 and/or CDC Ethernet), mass storage and ACM serial link
1038 You will be asked to choose which of the two configurations is
1039 to be available in the gadget. At least one configuration must
1040 be chosen to make the gadget usable. Selecting more than one
1041 configuration will prevent Windows from automatically detecting
1042 the gadget as a composite gadget, so an INF file will be needed to
1045 Say "y" to link the driver statically, or "m" to build a
1046 dynamically linked module called "g_multi".
1048 config USB_G_MULTI_RNDIS
1049 bool "RNDIS + CDC Serial + Storage configuration"
1050 depends on USB_G_MULTI
1053 This option enables a configuration with RNDIS, CDC Serial and
1054 Mass Storage functions available in the Multifunction Composite
1055 Gadget. This is the configuration dedicated for Windows since RNDIS
1056 is Microsoft's protocol.
1060 config USB_G_MULTI_CDC
1061 bool "CDC Ethernet + CDC Serial + Storage configuration"
1062 depends on USB_G_MULTI
1065 This option enables a configuration with CDC Ethernet (ECM), CDC
1066 Serial and Mass Storage functions available in the Multifunction
1074 tristate "HID Gadget"
1075 select USB_LIBCOMPOSITE
1077 The HID gadget driver provides generic emulation of USB
1078 Human Interface Devices (HID).
1080 For more information, see Documentation/usb/gadget_hid.txt which
1081 includes sample code for accessing the device files.
1083 Say "y" to link the driver statically, or "m" to build a
1084 dynamically linked module called "g_hid".
1086 # Standalone / single function gadgets
1088 tristate "EHCI Debug Device Gadget"
1090 select USB_LIBCOMPOSITE
1092 This gadget emulates an EHCI Debug device. This is useful when you want
1093 to interact with an EHCI Debug Port.
1095 Say "y" to link the driver statically, or "m" to build a
1096 dynamically linked module called "g_dbgp".
1100 prompt "EHCI Debug Device mode"
1101 default USB_G_DBGP_SERIAL
1103 config USB_G_DBGP_PRINTK
1104 depends on USB_G_DBGP
1107 Directly printk() received data. No interaction.
1109 config USB_G_DBGP_SERIAL
1110 depends on USB_G_DBGP
1114 Userland can interact using /dev/ttyGSxxx.
1118 # put drivers that need isochronous transfer support (for audio
1119 # or video class gadget drivers), or specific hardware, here.
1121 tristate "USB Webcam Gadget"
1122 depends on VIDEO_DEV
1123 select USB_LIBCOMPOSITE
1124 select VIDEOBUF2_VMALLOC
1126 The Webcam Gadget acts as a composite USB Audio and Video Class
1127 device. It provides a userspace API to process UVC control requests
1128 and stream video data to the host.
1130 Say "y" to link the driver statically, or "m" to build a
1131 dynamically linked module called "g_webcam".