2 # USB Host Controller Drivers
4 comment "USB Host Controller Drivers"
7 tristate "Cypress C67x00 HCD support"
9 The Cypress C67x00 (EZ-Host/EZ-OTG) chips are dual-role
10 host/peripheral/OTG USB controllers.
12 Enable this option to support this chip in host controller mode.
15 To compile this driver as a module, choose M here: the
16 module will be called c67x00.
19 tristate "xHCI HCD (USB 3.0) support"
21 The eXtensible Host Controller Interface (xHCI) is standard for USB 3.0
22 "SuperSpeed" host controller hardware.
24 To compile this driver as a module, choose M here: the
25 module will be called xhci-hcd.
29 config USB_XHCI_PLATFORM
33 tristate "xHCI support for Marvell Armada 375/38x"
34 select USB_XHCI_PLATFORM
35 depends on ARCH_MVEBU || COMPILE_TEST
37 Say 'Y' to enable the support for the xHCI host controller
38 found in Marvell Armada 375/38x ARM SOCs.
41 tristate "xHCI support for Renesas R-Car SoCs"
42 select USB_XHCI_PLATFORM
43 depends on ARCH_SHMOBILE || COMPILE_TEST
45 Say 'Y' to enable the support for the xHCI host controller
46 found in Renesas R-Car ARM SoCs.
51 tristate "EHCI HCD (USB 2.0) support"
53 The Enhanced Host Controller Interface (EHCI) is standard for USB 2.0
54 "high speed" (480 Mbit/sec, 60 Mbyte/sec) host controller hardware.
55 If your USB host controller supports USB 2.0, you will likely want to
56 configure this Host Controller Driver.
58 EHCI controllers are packaged with "companion" host controllers (OHCI
59 or UHCI) to handle USB 1.1 devices connected to root hub ports. Ports
60 will connect to EHCI if the device is high speed, otherwise they
61 connect to a companion controller. If you configure EHCI, you should
62 probably configure the OHCI (for NEC and some other vendors) USB Host
63 Controller Driver or UHCI (for Via motherboards) Host Controller
66 You may want to read <file:Documentation/usb/ehci.txt>.
68 To compile this driver as a module, choose M here: the
69 module will be called ehci-hcd.
71 config USB_EHCI_ROOT_HUB_TT
72 bool "Root Hub Transaction Translators"
73 depends on USB_EHCI_HCD
75 Some EHCI chips have vendor-specific extensions to integrate
76 transaction translators, so that no OHCI or UHCI companion
77 controller is needed. It's safe to say "y" even if your
78 controller doesn't support this feature.
80 This supports the EHCI implementation that's originally
81 from ARC, and has since changed hands a few times.
83 config USB_EHCI_TT_NEWSCHED
84 bool "Improved Transaction Translator scheduling"
85 depends on USB_EHCI_HCD
88 This changes the periodic scheduling code to fill more of the low
89 and full speed bandwidth available from the Transaction Translator
90 (TT) in USB 2.0 hubs. Without this, only one transfer will be
91 issued in each microframe, significantly reducing the number of
92 periodic low/fullspeed transfers possible.
94 If you have multiple periodic low/fullspeed devices connected to a
95 highspeed USB hub which is connected to a highspeed USB Host
96 Controller, and some of those devices will not work correctly
97 (possibly due to "ENOSPC" or "-28" errors), say Y. Conversely, if
98 you have only one such device and it doesn't work, you could try
103 config USB_FSL_MPH_DR_OF
113 config USB_EHCI_HCD_PMC_MSP
114 tristate "EHCI support for on-chip PMC MSP71xx USB controller"
115 depends on MSP_HAS_USB
117 select USB_EHCI_BIG_ENDIAN_DESC
118 select USB_EHCI_BIG_ENDIAN_MMIO
120 Enables support for the onchip USB controller on the PMC_MSP7100 Family SoC's.
123 config XPS_USB_HCD_XILINX
124 bool "Use Xilinx usb host EHCI controller core"
125 depends on (PPC32 || MICROBLAZE)
126 select USB_EHCI_BIG_ENDIAN_DESC
127 select USB_EHCI_BIG_ENDIAN_MMIO
129 Xilinx xps USB host controller core is EHCI compilant and has
130 transaction translator built-in. It can be configured to either
131 support both high speed and full speed devices, or high speed
135 bool "Support for Freescale PPC on-chip EHCI USB controller"
137 select USB_EHCI_ROOT_HUB_TT
138 select USB_FSL_MPH_DR_OF if OF
140 Variation of ARC USB block used in some Freescale chips.
143 tristate "Support for Freescale i.MX on-chip EHCI USB controller"
145 select USB_EHCI_ROOT_HUB_TT
147 Variation of ARC USB block used in some Freescale chips.
149 config USB_EHCI_HCD_OMAP
150 tristate "EHCI support for OMAP3 and later chips"
155 Enables support for the on-chip EHCI controller on
156 OMAP3 and later chips.
158 config USB_EHCI_HCD_ORION
159 tristate "Support for Marvell EBU on-chip EHCI USB controller"
160 depends on USB_EHCI_HCD && PLAT_ORION
163 Enables support for the on-chip EHCI controller on Marvell's
164 embedded ARM SoCs, including Orion, Kirkwood, Dove, Armada XP,
165 Armada 370. This is different from the EHCI implementation
166 on Marvell's mobile PXA and MMP SoC, see "EHCI support for
167 Marvell PXA/MMP USB controller" for those.
169 config USB_EHCI_HCD_SPEAR
170 tristate "Support for ST SPEAr on-chip EHCI USB controller"
171 depends on USB_EHCI_HCD && PLAT_SPEAR
174 Enables support for the on-chip EHCI controller on
177 config USB_EHCI_HCD_AT91
178 tristate "Support for Atmel on-chip EHCI USB controller"
179 depends on USB_EHCI_HCD && ARCH_AT91
182 Enables support for the on-chip EHCI controller on
186 tristate "Support for Qualcomm QSD/MSM on-chip EHCI USB controller"
187 depends on ARCH_MSM || ARCH_QCOM
188 select USB_EHCI_ROOT_HUB_TT
190 Enables support for the USB Host controller present on the
191 Qualcomm chipsets. Root Hub has inbuilt TT.
192 This driver depends on OTG driver for PHY initialization,
193 clock management, powering up VBUS, and power management.
194 This driver is not supported on boards like trout which
197 config USB_EHCI_TEGRA
198 tristate "NVIDIA Tegra HCD support"
199 depends on ARCH_TEGRA
200 select USB_EHCI_ROOT_HUB_TT
203 This driver enables support for the internal USB Host Controllers
204 found in NVIDIA Tegra SoCs. The controllers are EHCI compliant.
206 config USB_EHCI_HCD_PPC_OF
207 bool "EHCI support for PPC USB controller on OF platform bus"
211 Enables support for the USB controller present on the PowerPC
212 OpenFirmware platform bus.
215 bool "EHCI support for SuperH USB controller"
218 Enables support for the on-chip EHCI controller on the SuperH.
219 If you use the PCI EHCI controller, this option is not necessary.
221 config USB_EHCI_EXYNOS
222 tristate "EHCI support for Samsung S5P/EXYNOS SoC Series"
223 depends on PLAT_S5P || ARCH_EXYNOS
225 Enable support for the Samsung Exynos SOC's on-chip EHCI controller.
228 bool "EHCI support for Marvell PXA/MMP USB controller"
229 depends on (ARCH_PXA || ARCH_MMP)
230 select USB_EHCI_ROOT_HUB_TT
232 Enables support for Marvell (including PXA and MMP series) on-chip
233 USB SPH and OTG controller. SPH is a single port host, and it can
234 only be EHCI host. OTG is controller that can switch to host mode.
235 Note that this driver will not work on Marvell's other EHCI
236 controller used by the EBU-type SoCs including Orion, Kirkwood,
237 Dova, Armada 370 and Armada XP. See "Support for Marvell EBU
238 on-chip EHCI USB controller" for those.
240 config USB_W90X900_EHCI
241 tristate "W90X900(W90P910) EHCI support"
242 depends on ARCH_W90X900
244 Enables support for the W90X900 USB controller
246 config USB_CNS3XXX_EHCI
247 bool "Cavium CNS3XXX EHCI Module (DEPRECATED)"
248 depends on ARCH_CNS3XXX
249 select USB_EHCI_HCD_PLATFORM
251 This option is deprecated now and the driver was removed, use
252 USB_EHCI_HCD_PLATFORM instead.
254 Enable support for the CNS3XXX SOC's on-chip EHCI controller.
255 It is needed for high-speed (480Mbit/sec) USB 2.0 device
258 config USB_EHCI_ATH79
259 bool "EHCI support for AR7XXX/AR9XXX SoCs (DEPRECATED)"
260 depends on (SOC_AR71XX || SOC_AR724X || SOC_AR913X || SOC_AR933X)
261 select USB_EHCI_ROOT_HUB_TT
262 select USB_EHCI_HCD_PLATFORM
265 This option is deprecated now and the driver was removed, use
266 USB_EHCI_HCD_PLATFORM instead.
268 Enables support for the built-in EHCI controller present
269 on the Atheros AR7XXX/AR9XXX SoCs.
271 config USB_EHCI_HCD_PLATFORM
272 tristate "Generic EHCI driver for a platform device"
275 Adds an EHCI host driver for a generic platform device, which
276 provides a memory space and an irq.
280 config USB_OCTEON_EHCI
281 bool "Octeon on-chip EHCI support"
282 depends on CAVIUM_OCTEON_SOC
284 select USB_EHCI_BIG_ENDIAN_MMIO
286 Enable support for the Octeon II SOC's on-chip EHCI
287 controller. It is needed for high-speed (480Mbit/sec)
288 USB 2.0 device support. All CN6XXX based chips with USB are
293 config USB_OXU210HP_HCD
294 tristate "OXU210HP HCD support"
296 The OXU210HP is an USB host/OTG/device controller. Enable this
297 option if your board has this chip. If unsure, say N.
299 This driver does not support isochronous transfers and doesn't
300 implement OTG nor USB device controllers.
302 To compile this driver as a module, choose M here: the
303 module will be called oxu210hp-hcd.
305 config USB_ISP116X_HCD
306 tristate "ISP116X HCD support"
308 The ISP1160 and ISP1161 chips are USB host controllers. Enable this
309 option if your board has this chip. If unsure, say N.
311 This driver does not support isochronous transfers.
313 To compile this driver as a module, choose M here: the
314 module will be called isp116x-hcd.
316 config USB_ISP1760_HCD
317 tristate "ISP 1760 HCD support"
319 The ISP1760 chip is a USB 2.0 host controller.
321 This driver does not support isochronous transfers or OTG.
322 This USB controller is usually attached to a non-DMA-Master
323 capable bus. NXP's eval kit brings this chip on PCI card
324 where the chip itself is behind a PLB to simulate such
327 To compile this driver as a module, choose M here: the
328 module will be called isp1760.
330 config USB_ISP1362_HCD
331 tristate "ISP1362 HCD support"
333 Supports the Philips ISP1362 chip as a host controller
335 This driver does not support isochronous transfers.
337 To compile this driver as a module, choose M here: the
338 module will be called isp1362-hcd.
340 config USB_FUSBH200_HCD
341 tristate "FUSBH200 HCD support"
344 Faraday FUSBH200 is designed to meet USB2.0 EHCI specification
345 with minor modification.
347 To compile this driver as a module, choose M here: the
348 module will be called fusbh200-hcd.
350 config USB_FOTG210_HCD
351 tristate "FOTG210 HCD support"
354 Faraday FOTG210 is an OTG controller which can be configured as
355 an USB2.0 host. It is designed to meet USB2.0 EHCI specification
356 with minor modification.
358 To compile this driver as a module, choose M here: the
359 module will be called fotg210-hcd.
361 config USB_MAX3421_HCD
362 tristate "MAX3421 HCD (USB-over-SPI) support"
363 depends on USB && SPI
365 The Maxim MAX3421E chip supports standard USB 2.0-compliant
366 full-speed devices either in host or peripheral mode. This
367 driver supports the host-mode of the MAX3421E only.
369 To compile this driver as a module, choose M here: the module will
370 be called max3421-hcd.
373 tristate "OHCI HCD (USB 1.1) support"
375 The Open Host Controller Interface (OHCI) is a standard for accessing
376 USB 1.1 host controller hardware. It does more in hardware than Intel's
377 UHCI specification. If your USB host controller follows the OHCI spec,
378 say Y. On most non-x86 systems, and on x86 hardware that's not using a
379 USB controller from Intel or VIA, this is appropriate. If your host
380 controller doesn't use PCI, this is probably appropriate. For a PCI
381 based system where you're not sure, the "lspci -v" entry will list the
382 right "prog-if" for your USB controller(s): EHCI, OHCI, or UHCI.
384 To compile this driver as a module, choose M here: the
385 module will be called ohci-hcd.
389 config USB_OHCI_HCD_OMAP1
390 tristate "OHCI support for OMAP1/2 chips"
391 depends on ARCH_OMAP1
392 depends on ISP1301_OMAP || !(MACH_OMAP_H2 || MACH_OMAP_H3)
395 Enables support for the OHCI controller on OMAP1/2 chips.
397 config USB_OHCI_HCD_SPEAR
398 tristate "Support for ST SPEAr on-chip OHCI USB controller"
399 depends on USB_OHCI_HCD && PLAT_SPEAR
402 Enables support for the on-chip OHCI controller on
405 config USB_OHCI_HCD_S3C2410
406 tristate "OHCI support for Samsung S3C24xx/S3C64xx SoC series"
407 depends on USB_OHCI_HCD && (ARCH_S3C24XX || ARCH_S3C64XX)
410 Enables support for the on-chip OHCI controller on
411 S3C24xx/S3C64xx chips.
413 config USB_OHCI_HCD_LPC32XX
414 tristate "Support for LPC on-chip OHCI USB controller"
415 depends on USB_OHCI_HCD && ARCH_LPC32XX
416 depends on USB_ISP1301
419 Enables support for the on-chip OHCI controller on
422 config USB_OHCI_HCD_PXA27X
423 tristate "Support for PXA27X/PXA3XX on-chip OHCI USB controller"
424 depends on USB_OHCI_HCD && (PXA27x || PXA3xx)
427 Enables support for the on-chip OHCI controller on
430 config USB_OHCI_HCD_AT91
431 tristate "Support for Atmel on-chip OHCI USB controller"
432 depends on USB_OHCI_HCD && ARCH_AT91
435 Enables support for the on-chip OHCI controller on
438 config USB_OHCI_HCD_OMAP3
439 tristate "OHCI support for OMAP3 and later chips"
440 depends on (ARCH_OMAP3 || ARCH_OMAP4)
443 Enables support for the on-chip OHCI controller on
444 OMAP3 and later chips.
446 config USB_OHCI_HCD_DAVINCI
447 bool "OHCI support for TI DaVinci DA8xx"
448 depends on ARCH_DAVINCI_DA8XX
449 depends on USB_OHCI_HCD=y
452 Enables support for the DaVinci DA8xx integrated OHCI
453 controller. This driver cannot currently be a loadable
454 module because it lacks a proper PHY abstraction.
456 config USB_OHCI_ATH79
457 bool "USB OHCI support for the Atheros AR71XX/AR7240 SoCs (DEPRECATED)"
458 depends on (SOC_AR71XX || SOC_AR724X)
459 select USB_OHCI_HCD_PLATFORM
462 This option is deprecated now and the driver was removed, use
463 USB_OHCI_HCD_PLATFORM instead.
465 Enables support for the built-in OHCI controller present on the
466 Atheros AR71XX/AR7240 SoCs.
468 config USB_OHCI_HCD_PPC_OF_BE
469 bool "OHCI support for OF platform bus (big endian)"
471 select USB_OHCI_BIG_ENDIAN_DESC
472 select USB_OHCI_BIG_ENDIAN_MMIO
474 Enables support for big-endian USB controllers present on the
475 OpenFirmware platform bus.
477 config USB_OHCI_HCD_PPC_OF_LE
478 bool "OHCI support for OF platform bus (little endian)"
480 select USB_OHCI_LITTLE_ENDIAN
482 Enables support for little-endian USB controllers present on the
483 OpenFirmware platform bus.
485 config USB_OHCI_HCD_PPC_OF
488 default USB_OHCI_HCD_PPC_OF_BE || USB_OHCI_HCD_PPC_OF_LE
490 config USB_OHCI_HCD_PCI
491 tristate "OHCI support for PCI-bus USB controllers"
494 select USB_OHCI_LITTLE_ENDIAN
496 Enables support for PCI-bus plug-in USB controller cards.
499 config USB_OHCI_HCD_SSB
500 bool "OHCI support for Broadcom SSB OHCI core (DEPRECATED)"
501 depends on (SSB = y || SSB = USB_OHCI_HCD)
503 select USB_OHCI_HCD_PLATFORM
506 This option is deprecated now and the driver was removed, use
507 USB_HCD_SSB and USB_OHCI_HCD_PLATFORM instead.
509 Support for the Sonics Silicon Backplane (SSB) attached
510 Broadcom USB OHCI core.
512 This device is present in some embedded devices with
513 Broadcom based SSB bus.
518 bool "OHCI support for SuperH USB controller (DEPRECATED)"
520 select USB_OHCI_HCD_PLATFORM
522 This option is deprecated now and the driver was removed, use
523 USB_OHCI_HCD_PLATFORM instead.
525 Enables support for the on-chip OHCI controller on the SuperH.
526 If you use the PCI OHCI controller, this option is not necessary.
528 config USB_OHCI_EXYNOS
529 tristate "OHCI support for Samsung S5P/EXYNOS SoC Series"
530 depends on PLAT_S5P || ARCH_EXYNOS
532 Enable support for the Samsung Exynos SOC's on-chip OHCI controller.
534 config USB_CNS3XXX_OHCI
535 bool "Cavium CNS3XXX OHCI Module (DEPRECATED)"
536 depends on ARCH_CNS3XXX
537 select USB_OHCI_HCD_PLATFORM
539 This option is deprecated now and the driver was removed, use
540 USB_OHCI_HCD_PLATFORM instead.
542 Enable support for the CNS3XXX SOC's on-chip OHCI controller.
543 It is needed for low-speed USB 1.0 device support.
545 config USB_OHCI_HCD_PLATFORM
546 tristate "Generic OHCI driver for a platform device"
549 Adds an OHCI host driver for a generic platform device, which
550 provides a memory space and an irq.
554 config USB_OCTEON_OHCI
555 bool "Octeon on-chip OHCI support"
556 depends on CAVIUM_OCTEON_SOC
557 default USB_OCTEON_EHCI
558 select USB_OHCI_BIG_ENDIAN_MMIO
559 select USB_OHCI_LITTLE_ENDIAN
561 Enable support for the Octeon II SOC's on-chip OHCI
562 controller. It is needed for low-speed USB 1.0 device
563 support. All CN6XXX based chips with USB are supported.
568 tristate "UHCI HCD (most Intel and VIA) support"
569 depends on PCI || USB_UHCI_SUPPORT_NON_PCI_HC
571 The Universal Host Controller Interface is a standard by Intel for
572 accessing the USB hardware in the PC (which is also called the USB
573 host controller). If your USB host controller conforms to this
574 standard, you may want to say Y, but see below. All recent boards
575 with Intel PCI chipsets (like intel 430TX, 440FX, 440LX, 440BX,
576 i810, i820) conform to this standard. Also all VIA PCI chipsets
577 (like VIA VP2, VP3, MVP3, Apollo Pro, Apollo Pro II or Apollo Pro
578 133) and LEON/GRLIB SoCs with the GRUSBHC controller.
581 To compile this driver as a module, choose M here: the
582 module will be called uhci-hcd.
584 config USB_UHCI_SUPPORT_NON_PCI_HC
586 default y if (SPARC_LEON || USB_UHCI_PLATFORM)
588 config USB_UHCI_PLATFORM
590 default y if ARCH_VT8500
592 config USB_UHCI_BIG_ENDIAN_MMIO
594 default y if SPARC_LEON
596 config USB_UHCI_BIG_ENDIAN_DESC
598 default y if SPARC_LEON
601 tristate "Freescale QE USB Host Controller support"
602 depends on OF_GPIO && QE_GPIO && QUICC_ENGINE
606 This driver enables support for Freescale QE USB Host Controller
607 (as found on MPC8360 and MPC8323 processors), the driver supports
608 Full and Low Speed USB.
611 bool "Freescale QE USB Host Controller debug support"
612 depends on USB_FHCI_HCD && DEBUG_FS
614 Say "y" to see some FHCI debug information and statistics
618 tristate "Elan U132 Adapter Host Controller"
619 depends on USB_FTDI_ELAN
621 The U132 adapter is a USB to CardBus adapter specifically designed
622 for PC cards that contain an OHCI host controller. Typical PC cards
623 are the Orange Mobile 3G Option GlobeTrotter Fusion card. The U132
624 adapter will *NOT* work with PC cards that do not contain an OHCI
627 For those PC cards that contain multiple OHCI controllers only the
630 The driver consists of two modules, the "ftdi-elan" module is a
631 USB client driver that interfaces to the FTDI chip within ELAN's
632 USB-to-PCMCIA adapter, and this "u132-hcd" module is a USB host
633 controller driver that talks to the OHCI controller within the
634 CardBus cards that are inserted in the U132 adapter.
636 This driver has been tested with a CardBus OHCI USB adapter, and
637 worked with a USB PEN Drive inserted into the first USB port of
638 the PCCARD. A rather pointless thing to do, but useful for testing.
640 It is safe to say M here.
642 See also <http://www.elandigitalsystems.com/support/ufaq/u132linux.php>
645 tristate "SL811HS HCD support"
647 The SL811HS is a single-port USB controller that supports either
648 host side or peripheral side roles. Enable this option if your
649 board has this chip, and you want to use it as a host controller.
652 To compile this driver as a module, choose M here: the
653 module will be called sl811-hcd.
655 config USB_SL811_HCD_ISO
656 bool "partial ISO support"
657 depends on USB_SL811_HCD
659 The driver doesn't support iso_frame_desc (yet), but for some simple
660 devices that just queue one ISO frame per URB, then ISO transfers
661 "should" work using the normal urb status fields.
666 tristate "CF/PCMCIA support for SL811HS HCD"
667 depends on USB_SL811_HCD && PCMCIA
669 Wraps a PCMCIA driver around the SL811HS HCD, supporting the RATOC
670 REX-CFU1U CF card (often used with PDAs). If unsure, say N.
672 To compile this driver as a module, choose M here: the
673 module will be called "sl811_cs".
675 config USB_R8A66597_HCD
676 tristate "R8A66597 HCD support"
678 The R8A66597 is a USB 2.0 host and peripheral controller.
680 Enable this option if your board has this chip, and you want
681 to use it as a host controller. If unsure, say N.
683 To compile this driver as a module, choose M here: the
684 module will be called r8a66597-hcd.
686 config USB_RENESAS_USBHS_HCD
687 tristate "Renesas USBHS HCD support"
688 depends on USB_RENESAS_USBHS
690 The Renesas USBHS is a USB 2.0 host and peripheral controller.
692 Enable this option if your board has this chip, and you want
693 to use it as a host controller. If unsure, say N.
695 To compile this driver as a module, choose M here: the
696 module will be called renesas-usbhs.
699 tristate "Wireless USB Host Controller Interface (WHCI) driver"
700 depends on PCI && USB && UWB
704 A driver for PCI-based Wireless USB Host Controllers that are
705 compliant with the WHCI specification.
707 To compile this driver a module, choose M here: the module
708 will be called "whci-hcd".
711 tristate "Host Wire Adapter (HWA) driver"
716 This driver enables you to connect Wireless USB devices to
717 your system using a Host Wire Adaptor USB dongle. This is an
718 UWB Radio Controller and WUSB Host Controller connected to
719 your machine via USB (specified in WUSB1.0).
721 To compile this driver a module, choose M here: the module
722 will be called "hwa-hc".
725 tristate "i.MX21 HCD support"
726 depends on ARM && ARCH_MXC
728 This driver enables support for the on-chip USB host in the
731 To compile this driver as a module, choose M here: the
732 module will be called "imx21-hcd".
736 config USB_OCTEON2_COMMON
738 default y if USB_OCTEON_EHCI || USB_OCTEON_OHCI
741 tristate "BCMA usb host driver"
743 select USB_OHCI_HCD_PLATFORM if USB_OHCI_HCD
744 select USB_EHCI_HCD_PLATFORM if USB_EHCI_HCD
746 Enable support for the EHCI and OCHI host controller on an bcma bus.
747 It converts the bcma driver into two platform device drivers
753 tristate "SSB usb host driver"
755 select USB_OHCI_HCD_PLATFORM if USB_OHCI_HCD
756 select USB_EHCI_HCD_PLATFORM if USB_EHCI_HCD
758 Enable support for the EHCI and OCHI host controller on an bcma bus.
759 It converts the bcma driver into two platform device drivers
764 config USB_HCD_TEST_MODE
765 bool "HCD test mode support"
767 Say 'Y' to enable additional software test modes that may be
768 supported by the host controller drivers.
770 One such test mode is the Embedded High-speed Host Electrical Test
771 (EHSET) for EHCI host controller hardware, specifically the "Single
772 Step Set Feature" test. Typically this will be enabled for On-the-Go
773 or embedded hosts that need to undergo USB-IF compliance testing with
774 the aid of special testing hardware. In the future, this may expand
775 to include other tests that require support from a HCD driver.
777 This option is of interest only to developers who need to validate
778 their USB hardware designs. It is not needed for normal use. If