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Linus Torvalds1da177e2005-04-16 15:20:36 -07001#
2# USB Host Controller Drivers
3#
4comment "USB Host Controller Drivers"
Linus Torvalds1da177e2005-04-16 15:20:36 -07005
Peter Korsgaarde9b29ff2008-04-27 08:59:45 +02006config USB_C67X00_HCD
7 tristate "Cypress C67x00 HCD support"
Peter Korsgaarde9b29ff2008-04-27 08:59:45 +02008 help
9 The Cypress C67x00 (EZ-Host/EZ-OTG) chips are dual-role
10 host/peripheral/OTG USB controllers.
11
12 Enable this option to support this chip in host controller mode.
13 If unsure, say N.
14
15 To compile this driver as a module, choose M here: the
16 module will be called c67x00.
17
Sarah Sharpeb6bab12009-04-29 19:07:13 -070018config USB_XHCI_HCD
Greg Kroah-Hartmaneb83be92012-09-14 21:15:50 -070019 tristate "xHCI HCD (USB 3.0) support"
Sarah Sharpeb6bab12009-04-29 19:07:13 -070020 ---help---
21 The eXtensible Host Controller Interface (xHCI) is standard for USB 3.0
22 "SuperSpeed" host controller hardware.
23
24 To compile this driver as a module, choose M here: the
25 module will be called xhci-hcd.
26
Florian Fainelli0fcb9982013-04-09 14:29:29 +020027if USB_XHCI_HCD
28
Andrew Bresticker29e409f2014-10-03 11:35:29 +030029config USB_XHCI_PCI
30 tristate
31 depends on PCI
32 default y
33
Sebastian Andrzej Siewior3429e912012-03-13 16:57:41 +020034config USB_XHCI_PLATFORM
35 tristate
Sebastian Andrzej Siewior3429e912012-03-13 16:57:41 +020036
Gregory CLEMENT97374792014-05-15 12:17:33 +020037config USB_XHCI_MVEBU
38 tristate "xHCI support for Marvell Armada 375/38x"
39 select USB_XHCI_PLATFORM
40 depends on ARCH_MVEBU || COMPILE_TEST
41 ---help---
42 Say 'Y' to enable the support for the xHCI host controller
43 found in Marvell Armada 375/38x ARM SOCs.
44
Yoshihiro Shimoda4ac89182014-07-09 10:08:52 +090045config USB_XHCI_RCAR
46 tristate "xHCI support for Renesas R-Car SoCs"
47 select USB_XHCI_PLATFORM
48 depends on ARCH_SHMOBILE || COMPILE_TEST
49 ---help---
50 Say 'Y' to enable the support for the xHCI host controller
51 found in Renesas R-Car ARM SoCs.
52
Florian Fainelli0fcb9982013-04-09 14:29:29 +020053endif # USB_XHCI_HCD
54
Linus Torvalds1da177e2005-04-16 15:20:36 -070055config USB_EHCI_HCD
56 tristate "EHCI HCD (USB 2.0) support"
Linus Torvalds1da177e2005-04-16 15:20:36 -070057 ---help---
58 The Enhanced Host Controller Interface (EHCI) is standard for USB 2.0
59 "high speed" (480 Mbit/sec, 60 Mbyte/sec) host controller hardware.
60 If your USB host controller supports USB 2.0, you will likely want to
Thierry Vignaudb967c882009-02-11 13:31:05 -080061 configure this Host Controller Driver.
Linus Torvalds1da177e2005-04-16 15:20:36 -070062
63 EHCI controllers are packaged with "companion" host controllers (OHCI
64 or UHCI) to handle USB 1.1 devices connected to root hub ports. Ports
Jesper Juhlb3c29d82006-01-10 00:35:22 +010065 will connect to EHCI if the device is high speed, otherwise they
Linus Torvalds1da177e2005-04-16 15:20:36 -070066 connect to a companion controller. If you configure EHCI, you should
67 probably configure the OHCI (for NEC and some other vendors) USB Host
68 Controller Driver or UHCI (for Via motherboards) Host Controller
69 Driver too.
70
71 You may want to read <file:Documentation/usb/ehci.txt>.
72
73 To compile this driver as a module, choose M here: the
74 module will be called ehci-hcd.
75
Linus Torvalds1da177e2005-04-16 15:20:36 -070076config USB_EHCI_ROOT_HUB_TT
Robert P. J. Day9ec249a2008-03-08 03:27:44 -050077 bool "Root Hub Transaction Translators"
Peter Chena746c282013-09-17 12:37:18 +080078 depends on USB_EHCI_HCD
Linus Torvalds1da177e2005-04-16 15:20:36 -070079 ---help---
80 Some EHCI chips have vendor-specific extensions to integrate
81 transaction translators, so that no OHCI or UHCI companion
82 controller is needed. It's safe to say "y" even if your
83 controller doesn't support this feature.
84
Dan Streetmanba47f662006-05-24 09:39:16 -070085 This supports the EHCI implementation that's originally
86 from ARC, and has since changed hands a few times.
87
88config USB_EHCI_TT_NEWSCHED
Alan Stern37cd6812010-05-21 17:08:21 -040089 bool "Improved Transaction Translator scheduling"
Peter Chena746c282013-09-17 12:37:18 +080090 depends on USB_EHCI_HCD
Alan Stern37cd6812010-05-21 17:08:21 -040091 default y
Dan Streetmanba47f662006-05-24 09:39:16 -070092 ---help---
93 This changes the periodic scheduling code to fill more of the low
94 and full speed bandwidth available from the Transaction Translator
95 (TT) in USB 2.0 hubs. Without this, only one transfer will be
96 issued in each microframe, significantly reducing the number of
97 periodic low/fullspeed transfers possible.
98
99 If you have multiple periodic low/fullspeed devices connected to a
100 highspeed USB hub which is connected to a highspeed USB Host
101 Controller, and some of those devices will not work correctly
Alan Stern37cd6812010-05-21 17:08:21 -0400102 (possibly due to "ENOSPC" or "-28" errors), say Y. Conversely, if
103 you have only one such device and it doesn't work, you could try
104 saying N.
Dan Streetmanba47f662006-05-24 09:39:16 -0700105
Alan Stern37cd6812010-05-21 17:08:21 -0400106 If unsure, say Y.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700107
Florian Fainelli42443dc2013-04-09 14:29:27 +0200108config USB_FSL_MPH_DR_OF
109 tristate
110
111if USB_EHCI_HCD
112
Alan Sternadfa79d2012-11-01 11:13:04 -0400113config USB_EHCI_PCI
114 tristate
Florian Fainelli42443dc2013-04-09 14:29:27 +0200115 depends on PCI
Alan Sternadfa79d2012-11-01 11:13:04 -0400116 default y
117
Anoop22ced6872011-02-24 19:26:28 +0530118config USB_EHCI_HCD_PMC_MSP
119 tristate "EHCI support for on-chip PMC MSP71xx USB controller"
Florian Fainelli42443dc2013-04-09 14:29:27 +0200120 depends on MSP_HAS_USB
Anoop22ced6872011-02-24 19:26:28 +0530121 default n
122 select USB_EHCI_BIG_ENDIAN_DESC
123 select USB_EHCI_BIG_ENDIAN_MMIO
124 ---help---
125 Enables support for the onchip USB controller on the PMC_MSP7100 Family SoC's.
126 If unsure, say N.
127
Julie Zhu08d3c182009-09-21 16:08:19 -0600128config XPS_USB_HCD_XILINX
129 bool "Use Xilinx usb host EHCI controller core"
Florian Fainelli42443dc2013-04-09 14:29:27 +0200130 depends on (PPC32 || MICROBLAZE)
Julie Zhu08d3c182009-09-21 16:08:19 -0600131 select USB_EHCI_BIG_ENDIAN_DESC
132 select USB_EHCI_BIG_ENDIAN_MMIO
133 ---help---
134 Xilinx xps USB host controller core is EHCI compilant and has
135 transaction translator built-in. It can be configured to either
136 support both high speed and full speed devices, or high speed
137 devices only.
138
Li Yangba029782007-05-11 17:09:55 +0800139config USB_EHCI_FSL
Fabio Estevamc0ca9bc2012-02-02 14:23:34 -0200140 bool "Support for Freescale PPC on-chip EHCI USB controller"
Florian Fainelli42443dc2013-04-09 14:29:27 +0200141 depends on FSL_SOC
Li Yangba029782007-05-11 17:09:55 +0800142 select USB_EHCI_ROOT_HUB_TT
Marc Kleine-Budde018b97d2010-10-29 11:04:49 +0200143 select USB_FSL_MPH_DR_OF if OF
Li Yangba029782007-05-11 17:09:55 +0800144 ---help---
145 Variation of ARC USB block used in some Freescale chips.
146
Daniel Mack7e8d5cd2009-10-28 01:14:59 +0100147config USB_EHCI_MXC
Alan Sterndba63b22013-01-23 13:26:15 -0500148 tristate "Support for Freescale i.MX on-chip EHCI USB controller"
Florian Fainelli42443dc2013-04-09 14:29:27 +0200149 depends on ARCH_MXC
Daniel Mack7e8d5cd2009-10-28 01:14:59 +0100150 select USB_EHCI_ROOT_HUB_TT
151 ---help---
152 Variation of ARC USB block used in some Freescale chips.
153
Keshava Munegowda7f124f42010-11-21 23:23:41 +0530154config USB_EHCI_HCD_OMAP
Alan Stern54a419662013-03-12 12:44:39 +0200155 tristate "EHCI support for OMAP3 and later chips"
Florian Fainelli42443dc2013-04-09 14:29:27 +0200156 depends on ARCH_OMAP
Roger Quadros88650d62013-06-14 12:51:42 +0300157 select NOP_USB_XCEIV
Keshava Munegowda7f124f42010-11-21 23:23:41 +0530158 default y
Paul Bolled132d7f2012-05-07 11:14:59 +0200159 ---help---
Keshava Munegowda7f124f42010-11-21 23:23:41 +0530160 Enables support for the on-chip EHCI controller on
161 OMAP3 and later chips.
162
Manjunath Goudara76dd462013-04-02 18:23:59 +0200163config USB_EHCI_HCD_ORION
164 tristate "Support for Marvell EBU on-chip EHCI USB controller"
165 depends on USB_EHCI_HCD && PLAT_ORION
166 default y
167 ---help---
168 Enables support for the on-chip EHCI controller on Marvell's
169 embedded ARM SoCs, including Orion, Kirkwood, Dove, Armada XP,
170 Armada 370. This is different from the EHCI implementation
171 on Marvell's mobile PXA and MMP SoC, see "EHCI support for
172 Marvell PXA/MMP USB controller" for those.
173
Manjunath Goudar7675d6b2013-04-02 18:24:00 +0200174config USB_EHCI_HCD_SPEAR
175 tristate "Support for ST SPEAr on-chip EHCI USB controller"
176 depends on USB_EHCI_HCD && PLAT_SPEAR
177 default y
178 ---help---
179 Enables support for the on-chip EHCI controller on
180 ST SPEAr chips.
181
Arnd Bergmann905e3002014-09-29 14:54:34 +0200182config USB_EHCI_HCD_STI
183 tristate "Support for ST STiHxxx on-chip EHCI USB controller"
184 depends on ARCH_STI && OF
185 select GENERIC_PHY
186 select USB_EHCI_HCD_PLATFORM
187 help
188 Enable support for the on-chip EHCI controller found on
189 STMicroelectronics consumer electronics SoC's.
190
Manjunath Goudar97736962013-04-02 18:24:02 +0200191config USB_EHCI_HCD_AT91
192 tristate "Support for Atmel on-chip EHCI USB controller"
193 depends on USB_EHCI_HCD && ARCH_AT91
194 default y
195 ---help---
196 Enables support for the on-chip EHCI controller on
197 Atmel chips.
198
Pavankumar Kondetib0848ae2010-12-07 17:53:56 +0530199config USB_EHCI_MSM
Manjunath Goudar8c68e842013-04-02 18:24:03 +0200200 tristate "Support for Qualcomm QSD/MSM on-chip EHCI USB controller"
Srinivas Kandagatla8ae587e2014-06-30 18:29:34 +0100201 depends on ARCH_MSM || ARCH_QCOM
Pavankumar Kondetib0848ae2010-12-07 17:53:56 +0530202 select USB_EHCI_ROOT_HUB_TT
Pavankumar Kondetib0848ae2010-12-07 17:53:56 +0530203 ---help---
204 Enables support for the USB Host controller present on the
205 Qualcomm chipsets. Root Hub has inbuilt TT.
206 This driver depends on OTG driver for PHY initialization,
Pavankumar Kondeti8bb6a162010-12-07 17:53:57 +0530207 clock management, powering up VBUS, and power management.
Pavankumar Kondeti8cf28f12011-02-04 10:08:18 +0530208 This driver is not supported on boards like trout which
209 has an external PHY.
Pavankumar Kondetib0848ae2010-12-07 17:53:56 +0530210
Benoit Goby79ad3b52011-03-09 16:28:56 -0800211config USB_EHCI_TEGRA
Manjunath Goudar9fc5f242013-06-13 11:24:12 -0600212 tristate "NVIDIA Tegra HCD support"
Florian Fainelli42443dc2013-04-09 14:29:27 +0200213 depends on ARCH_TEGRA
Benoit Goby79ad3b52011-03-09 16:28:56 -0800214 select USB_EHCI_ROOT_HUB_TT
Felipe Balbi75f32ec2013-03-20 14:18:28 +0200215 select USB_PHY
Benoit Goby79ad3b52011-03-09 16:28:56 -0800216 help
217 This driver enables support for the internal USB Host Controllers
218 found in NVIDIA Tegra SoCs. The controllers are EHCI compliant.
219
Valentine Barshakda0e8fb2007-12-30 15:28:50 -0800220config USB_EHCI_HCD_PPC_OF
221 bool "EHCI support for PPC USB controller on OF platform bus"
Florian Fainelli42443dc2013-04-09 14:29:27 +0200222 depends on PPC_OF
Valentine Barshakda0e8fb2007-12-30 15:28:50 -0800223 default y
224 ---help---
225 Enables support for the USB controller present on the PowerPC
226 OpenFirmware platform bus.
227
Yoshihiro Shimoda60b0bf02011-03-01 16:58:37 +0900228config USB_EHCI_SH
229 bool "EHCI support for SuperH USB controller"
Florian Fainelli42443dc2013-04-09 14:29:27 +0200230 depends on SUPERH
Yoshihiro Shimoda60b0bf02011-03-01 16:58:37 +0900231 ---help---
232 Enables support for the on-chip EHCI controller on the SuperH.
233 If you use the PCI EHCI controller, this option is not necessary.
234
Jingoo Han29824c12013-10-10 16:42:47 +0900235config USB_EHCI_EXYNOS
Manjunath Goudar7edb3da2013-04-02 18:24:01 +0200236 tristate "EHCI support for Samsung S5P/EXYNOS SoC Series"
Tomasz Figa58d5b722013-06-19 01:25:48 +0900237 depends on PLAT_S5P || ARCH_EXYNOS
Greg Kroah-Hartmane9a92b22013-02-20 10:25:05 -0800238 help
Jingoo Han29824c12013-10-10 16:42:47 +0900239 Enable support for the Samsung Exynos SOC's on-chip EHCI controller.
Joonyoung Shim1bcc5aa2011-04-08 14:08:50 +0900240
Neil Zhang3a082ec2011-12-20 13:20:23 +0800241config USB_EHCI_MV
Manjunath Goudara76dd462013-04-02 18:23:59 +0200242 bool "EHCI support for Marvell PXA/MMP USB controller"
Florian Fainelli42443dc2013-04-09 14:29:27 +0200243 depends on (ARCH_PXA || ARCH_MMP)
Neil Zhang3a082ec2011-12-20 13:20:23 +0800244 select USB_EHCI_ROOT_HUB_TT
245 ---help---
246 Enables support for Marvell (including PXA and MMP series) on-chip
247 USB SPH and OTG controller. SPH is a single port host, and it can
248 only be EHCI host. OTG is controller that can switch to host mode.
Manjunath Goudara76dd462013-04-02 18:23:59 +0200249 Note that this driver will not work on Marvell's other EHCI
250 controller used by the EBU-type SoCs including Orion, Kirkwood,
251 Dova, Armada 370 and Armada XP. See "Support for Marvell EBU
252 on-chip EHCI USB controller" for those.
Neil Zhang3a082ec2011-12-20 13:20:23 +0800253
Wan ZongShun586dfc82009-06-13 09:14:28 +0800254config USB_W90X900_EHCI
Manjunath Goudara60f4f82013-09-21 16:44:42 +0530255 tristate "W90X900(W90P910) EHCI support"
Florian Fainelli42443dc2013-04-09 14:29:27 +0200256 depends on ARCH_W90X900
Wan ZongShun586dfc82009-06-13 09:14:28 +0800257 ---help---
258 Enables support for the W90X900 USB controller
259
Mac Lin760efe62010-11-25 23:58:00 +0800260config USB_CNS3XXX_EHCI
Florian Fainellif3a958d2012-10-08 15:11:25 +0200261 bool "Cavium CNS3XXX EHCI Module (DEPRECATED)"
Florian Fainelli42443dc2013-04-09 14:29:27 +0200262 depends on ARCH_CNS3XXX
Florian Fainellif3a958d2012-10-08 15:11:25 +0200263 select USB_EHCI_HCD_PLATFORM
Mac Lin760efe62010-11-25 23:58:00 +0800264 ---help---
Florian Fainellif3a958d2012-10-08 15:11:25 +0200265 This option is deprecated now and the driver was removed, use
266 USB_EHCI_HCD_PLATFORM instead.
267
Mac Lin760efe62010-11-25 23:58:00 +0800268 Enable support for the CNS3XXX SOC's on-chip EHCI controller.
269 It is needed for high-speed (480Mbit/sec) USB 2.0 device
270 support.
271
Gabor Juhos502fa842011-04-13 10:54:22 +0200272config USB_EHCI_ATH79
Hauke Mehrtens5d98cd42012-03-13 01:04:53 +0100273 bool "EHCI support for AR7XXX/AR9XXX SoCs (DEPRECATED)"
Florian Fainelli42443dc2013-04-09 14:29:27 +0200274 depends on (SOC_AR71XX || SOC_AR724X || SOC_AR913X || SOC_AR933X)
Gabor Juhos502fa842011-04-13 10:54:22 +0200275 select USB_EHCI_ROOT_HUB_TT
Hauke Mehrtens5d98cd42012-03-13 01:04:53 +0100276 select USB_EHCI_HCD_PLATFORM
Gabor Juhos502fa842011-04-13 10:54:22 +0200277 default y
278 ---help---
Hauke Mehrtens5d98cd42012-03-13 01:04:53 +0100279 This option is deprecated now and the driver was removed, use
280 USB_EHCI_HCD_PLATFORM instead.
281
Gabor Juhos502fa842011-04-13 10:54:22 +0200282 Enables support for the built-in EHCI controller present
283 on the Atheros AR7XXX/AR9XXX SoCs.
284
Florian Fainelli42443dc2013-04-09 14:29:27 +0200285config USB_EHCI_HCD_PLATFORM
286 tristate "Generic EHCI driver for a platform device"
287 default n
288 ---help---
289 Adds an EHCI host driver for a generic platform device, which
290 provides a memory space and an irq.
291
292 If unsure, say N.
293
294config USB_OCTEON_EHCI
295 bool "Octeon on-chip EHCI support"
David Daney9ddebc42013-05-22 15:10:46 +0000296 depends on CAVIUM_OCTEON_SOC
Florian Fainelli42443dc2013-04-09 14:29:27 +0200297 default n
298 select USB_EHCI_BIG_ENDIAN_MMIO
299 help
300 Enable support for the Octeon II SOC's on-chip EHCI
301 controller. It is needed for high-speed (480Mbit/sec)
302 USB 2.0 device support. All CN6XXX based chips with USB are
303 supported.
304
305endif # USB_EHCI_HCD
306
Rodolfo Giomettib92a78e2008-10-23 10:08:07 +0200307config USB_OXU210HP_HCD
308 tristate "OXU210HP HCD support"
Rodolfo Giomettib92a78e2008-10-23 10:08:07 +0200309 ---help---
310 The OXU210HP is an USB host/OTG/device controller. Enable this
311 option if your board has this chip. If unsure, say N.
312
313 This driver does not support isochronous transfers and doesn't
314 implement OTG nor USB device controllers.
315
316 To compile this driver as a module, choose M here: the
317 module will be called oxu210hp-hcd.
318
Olav Kongas4808a1c2005-04-09 22:57:39 +0300319config USB_ISP116X_HCD
320 tristate "ISP116X HCD support"
Olav Kongas4808a1c2005-04-09 22:57:39 +0300321 ---help---
322 The ISP1160 and ISP1161 chips are USB host controllers. Enable this
323 option if your board has this chip. If unsure, say N.
324
325 This driver does not support isochronous transfers.
326
327 To compile this driver as a module, choose M here: the
328 module will be called isp116x-hcd.
329
Sebastian Siewiordb11e472008-04-24 00:37:04 +0200330config USB_ISP1760_HCD
331 tristate "ISP 1760 HCD support"
Sebastian Siewiordb11e472008-04-24 00:37:04 +0200332 ---help---
333 The ISP1760 chip is a USB 2.0 host controller.
334
335 This driver does not support isochronous transfers or OTG.
Sebastian Andrzej Siewiorff30bf12008-11-02 15:25:42 +0100336 This USB controller is usually attached to a non-DMA-Master
337 capable bus. NXP's eval kit brings this chip on PCI card
338 where the chip itself is behind a PLB to simulate such
339 a bus.
Sebastian Siewiordb11e472008-04-24 00:37:04 +0200340
341 To compile this driver as a module, choose M here: the
Sebastian Andrzej Siewiorff30bf12008-11-02 15:25:42 +0100342 module will be called isp1760.
Sebastian Siewiordb11e472008-04-24 00:37:04 +0200343
Lothar Wassmanna9d43092009-07-16 20:51:21 -0400344config USB_ISP1362_HCD
345 tristate "ISP1362 HCD support"
Lothar Wassmanna9d43092009-07-16 20:51:21 -0400346 ---help---
347 Supports the Philips ISP1362 chip as a host controller
348
349 This driver does not support isochronous transfers.
350
351 To compile this driver as a module, choose M here: the
352 module will be called isp1362-hcd.
353
Yuan-Hsin Chen6c920bfb2013-05-17 10:14:14 +0000354config USB_FUSBH200_HCD
355 tristate "FUSBH200 HCD support"
356 depends on USB
Yuan-Hsin Chen6c920bfb2013-05-17 10:14:14 +0000357 ---help---
358 Faraday FUSBH200 is designed to meet USB2.0 EHCI specification
359 with minor modification.
360
361 To compile this driver as a module, choose M here: the
362 module will be called fusbh200-hcd.
363
Feng-Hsin Chiang7d501952013-07-29 16:48:32 +0000364config USB_FOTG210_HCD
365 tristate "FOTG210 HCD support"
366 depends on USB
Feng-Hsin Chiang7d501952013-07-29 16:48:32 +0000367 ---help---
368 Faraday FOTG210 is an OTG controller which can be configured as
369 an USB2.0 host. It is designed to meet USB2.0 EHCI specification
370 with minor modification.
371
372 To compile this driver as a module, choose M here: the
373 module will be called fotg210-hcd.
374
David Mosberger2d531392014-04-28 22:14:07 -0600375config USB_MAX3421_HCD
376 tristate "MAX3421 HCD (USB-over-SPI) support"
377 depends on USB && SPI
378 ---help---
379 The Maxim MAX3421E chip supports standard USB 2.0-compliant
380 full-speed devices either in host or peripheral mode. This
381 driver supports the host-mode of the MAX3421E only.
382
383 To compile this driver as a module, choose M here: the module will
384 be called max3421-hcd.
385
Linus Torvalds1da177e2005-04-16 15:20:36 -0700386config USB_OHCI_HCD
Manjunath Goudarc1117af2013-05-28 18:34:51 +0530387 tristate "OHCI HCD (USB 1.1) support"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700388 ---help---
389 The Open Host Controller Interface (OHCI) is a standard for accessing
390 USB 1.1 host controller hardware. It does more in hardware than Intel's
391 UHCI specification. If your USB host controller follows the OHCI spec,
392 say Y. On most non-x86 systems, and on x86 hardware that's not using a
393 USB controller from Intel or VIA, this is appropriate. If your host
394 controller doesn't use PCI, this is probably appropriate. For a PCI
395 based system where you're not sure, the "lspci -v" entry will list the
396 right "prog-if" for your USB controller(s): EHCI, OHCI, or UHCI.
397
398 To compile this driver as a module, choose M here: the
399 module will be called ohci-hcd.
400
Florian Fainelli3ad3ca02013-04-09 14:29:28 +0200401if USB_OHCI_HCD
402
Anand Gadiyar968b4482010-05-10 21:56:12 +0530403config USB_OHCI_HCD_OMAP1
Manjunath Goudarde57a152013-09-21 16:38:39 +0530404 tristate "OHCI support for OMAP1/2 chips"
Florian Fainelli3ad3ca02013-04-09 14:29:28 +0200405 depends on ARCH_OMAP1
Arnd Bergmann38e0c102014-05-08 15:52:20 +0200406 depends on ISP1301_OMAP || !(MACH_OMAP_H2 || MACH_OMAP_H3)
Anand Gadiyar968b4482010-05-10 21:56:12 +0530407 default y
408 ---help---
409 Enables support for the OHCI controller on OMAP1/2 chips.
410
Manjunath Goudar1cc6ac52013-09-21 16:38:41 +0530411config USB_OHCI_HCD_SPEAR
412 tristate "Support for ST SPEAr on-chip OHCI USB controller"
413 depends on USB_OHCI_HCD && PLAT_SPEAR
414 default y
415 ---help---
416 Enables support for the on-chip OHCI controller on
417 ST SPEAr chips.
418
Arnd Bergmann905e3002014-09-29 14:54:34 +0200419config USB_OHCI_HCD_STI
420 tristate "Support for ST STiHxxx on-chip OHCI USB controller"
421 depends on ARCH_STI && OF
422 select GENERIC_PHY
423 select USB_OHCI_HCD_PLATFORM
424 help
425 Enable support for the on-chip OHCI controller found on
426 STMicroelectronics consumer electronics SoC's.
427
Manjunath Goudarf23b71f2013-09-21 16:38:43 +0530428config USB_OHCI_HCD_S3C2410
429 tristate "OHCI support for Samsung S3C24xx/S3C64xx SoC series"
430 depends on USB_OHCI_HCD && (ARCH_S3C24XX || ARCH_S3C64XX)
431 default y
432 ---help---
433 Enables support for the on-chip OHCI controller on
434 S3C24xx/S3C64xx chips.
435
Manjunath Goudar30330b82013-09-21 16:38:44 +0530436config USB_OHCI_HCD_LPC32XX
437 tristate "Support for LPC on-chip OHCI USB controller"
438 depends on USB_OHCI_HCD && ARCH_LPC32XX
Arnd Bergmann38e0c102014-05-08 15:52:20 +0200439 depends on USB_ISP1301
Manjunath Goudar30330b82013-09-21 16:38:44 +0530440 default y
441 ---help---
442 Enables support for the on-chip OHCI controller on
443 NXP chips.
444
Manjunath Goudarb8ad5c32013-09-21 16:38:46 +0530445config USB_OHCI_HCD_PXA27X
446 tristate "Support for PXA27X/PXA3XX on-chip OHCI USB controller"
447 depends on USB_OHCI_HCD && (PXA27x || PXA3xx)
448 default y
449 ---help---
450 Enables support for the on-chip OHCI controller on
451 PXA27x/PXA3xx chips.
452
Manjunath Goudare3825b42013-09-21 16:38:42 +0530453config USB_OHCI_HCD_AT91
454 tristate "Support for Atmel on-chip OHCI USB controller"
455 depends on USB_OHCI_HCD && ARCH_AT91
456 default y
457 ---help---
458 Enables support for the on-chip OHCI controller on
459 Atmel chips.
460
Anand Gadiyar968b4482010-05-10 21:56:12 +0530461config USB_OHCI_HCD_OMAP3
Manjunath Goudar3a48fef2013-09-21 16:38:40 +0530462 tristate "OHCI support for OMAP3 and later chips"
Florian Fainelli3ad3ca02013-04-09 14:29:28 +0200463 depends on (ARCH_OMAP3 || ARCH_OMAP4)
Anand Gadiyar968b4482010-05-10 21:56:12 +0530464 default y
465 ---help---
466 Enables support for the on-chip OHCI controller on
467 OMAP3 and later chips.
468
Arnd Bergmann068413e2014-05-08 15:52:21 +0200469config USB_OHCI_HCD_DAVINCI
470 bool "OHCI support for TI DaVinci DA8xx"
471 depends on ARCH_DAVINCI_DA8XX
472 depends on USB_OHCI_HCD=y
473 default y
474 help
475 Enables support for the DaVinci DA8xx integrated OHCI
476 controller. This driver cannot currently be a loadable
477 module because it lacks a proper PHY abstraction.
478
Gabor Juhos90e6ca52011-04-13 10:54:24 +0200479config USB_OHCI_ATH79
Hauke Mehrtens5d98cd42012-03-13 01:04:53 +0100480 bool "USB OHCI support for the Atheros AR71XX/AR7240 SoCs (DEPRECATED)"
Florian Fainelli3ad3ca02013-04-09 14:29:28 +0200481 depends on (SOC_AR71XX || SOC_AR724X)
Hauke Mehrtens5d98cd42012-03-13 01:04:53 +0100482 select USB_OHCI_HCD_PLATFORM
Gabor Juhos90e6ca52011-04-13 10:54:24 +0200483 default y
484 help
Hauke Mehrtens5d98cd42012-03-13 01:04:53 +0100485 This option is deprecated now and the driver was removed, use
486 USB_OHCI_HCD_PLATFORM instead.
487
Gabor Juhos90e6ca52011-04-13 10:54:24 +0200488 Enables support for the built-in OHCI controller present on the
489 Atheros AR71XX/AR7240 SoCs.
490
Sylvain Munaut495a6782006-12-13 21:09:55 +0100491config USB_OHCI_HCD_PPC_OF_BE
Arnd Bergmann45e83882009-06-19 05:35:34 -0700492 bool "OHCI support for OF platform bus (big endian)"
Florian Fainelli3ad3ca02013-04-09 14:29:28 +0200493 depends on PPC_OF
Sylvain Munaut495a6782006-12-13 21:09:55 +0100494 select USB_OHCI_BIG_ENDIAN_DESC
495 select USB_OHCI_BIG_ENDIAN_MMIO
Arnd Bergmann45e83882009-06-19 05:35:34 -0700496 ---help---
497 Enables support for big-endian USB controllers present on the
498 OpenFirmware platform bus.
Sylvain Munaut495a6782006-12-13 21:09:55 +0100499
500config USB_OHCI_HCD_PPC_OF_LE
Arnd Bergmann45e83882009-06-19 05:35:34 -0700501 bool "OHCI support for OF platform bus (little endian)"
Florian Fainelli3ad3ca02013-04-09 14:29:28 +0200502 depends on PPC_OF
Sylvain Munaut495a6782006-12-13 21:09:55 +0100503 select USB_OHCI_LITTLE_ENDIAN
Arnd Bergmann45e83882009-06-19 05:35:34 -0700504 ---help---
505 Enables support for little-endian USB controllers present on the
506 OpenFirmware platform bus.
507
508config USB_OHCI_HCD_PPC_OF
509 bool
Florian Fainelli3ad3ca02013-04-09 14:29:28 +0200510 depends on PPC_OF
Arnd Bergmann45e83882009-06-19 05:35:34 -0700511 default USB_OHCI_HCD_PPC_OF_BE || USB_OHCI_HCD_PPC_OF_LE
Sylvain Munaut495a6782006-12-13 21:09:55 +0100512
Linus Torvalds1da177e2005-04-16 15:20:36 -0700513config USB_OHCI_HCD_PCI
Manjunath Goudarc1117af2013-05-28 18:34:51 +0530514 tristate "OHCI support for PCI-bus USB controllers"
515 depends on PCI
Linus Torvalds1da177e2005-04-16 15:20:36 -0700516 default y
517 select USB_OHCI_LITTLE_ENDIAN
518 ---help---
519 Enables support for PCI-bus plug-in USB controller cards.
520 If unsure, say Y.
521
Michael Bueschc604e852007-10-09 23:47:17 -0700522config USB_OHCI_HCD_SSB
Hauke Mehrtens259b83a2012-03-15 23:49:59 +0100523 bool "OHCI support for Broadcom SSB OHCI core (DEPRECATED)"
Florian Fainelli3ad3ca02013-04-09 14:29:28 +0200524 depends on (SSB = y || SSB = USB_OHCI_HCD)
Hauke Mehrtens259b83a2012-03-15 23:49:59 +0100525 select USB_HCD_SSB
526 select USB_OHCI_HCD_PLATFORM
Michael Bueschc604e852007-10-09 23:47:17 -0700527 default n
528 ---help---
Hauke Mehrtens259b83a2012-03-15 23:49:59 +0100529 This option is deprecated now and the driver was removed, use
530 USB_HCD_SSB and USB_OHCI_HCD_PLATFORM instead.
531
Michael Bueschc604e852007-10-09 23:47:17 -0700532 Support for the Sonics Silicon Backplane (SSB) attached
533 Broadcom USB OHCI core.
534
535 This device is present in some embedded devices with
536 Broadcom based SSB bus.
537
538 If unsure, say N.
539
Yoshihiro Shimoda60b0bf02011-03-01 16:58:37 +0900540config USB_OHCI_SH
Florian Fainelli231a72e2012-10-08 15:11:37 +0200541 bool "OHCI support for SuperH USB controller (DEPRECATED)"
Florian Fainelli3ad3ca02013-04-09 14:29:28 +0200542 depends on SUPERH
Florian Fainelli231a72e2012-10-08 15:11:37 +0200543 select USB_OHCI_HCD_PLATFORM
Yoshihiro Shimoda60b0bf02011-03-01 16:58:37 +0900544 ---help---
Florian Fainelli231a72e2012-10-08 15:11:37 +0200545 This option is deprecated now and the driver was removed, use
546 USB_OHCI_HCD_PLATFORM instead.
547
Yoshihiro Shimoda60b0bf02011-03-01 16:58:37 +0900548 Enables support for the on-chip OHCI controller on the SuperH.
549 If you use the PCI OHCI controller, this option is not necessary.
550
Jingoo Han62194242011-12-23 11:20:54 +0900551config USB_OHCI_EXYNOS
Manjunath Goudar50a97e02013-09-21 16:38:38 +0530552 tristate "OHCI support for Samsung S5P/EXYNOS SoC Series"
553 depends on PLAT_S5P || ARCH_EXYNOS
Jingoo Han62194242011-12-23 11:20:54 +0900554 help
555 Enable support for the Samsung Exynos SOC's on-chip OHCI controller.
556
Mac Lin760efe62010-11-25 23:58:00 +0800557config USB_CNS3XXX_OHCI
Florian Fainellic23920b02012-10-08 15:11:33 +0200558 bool "Cavium CNS3XXX OHCI Module (DEPRECATED)"
Florian Fainelli3ad3ca02013-04-09 14:29:28 +0200559 depends on ARCH_CNS3XXX
Florian Fainellic23920b02012-10-08 15:11:33 +0200560 select USB_OHCI_HCD_PLATFORM
Mac Lin760efe62010-11-25 23:58:00 +0800561 ---help---
Florian Fainellic23920b02012-10-08 15:11:33 +0200562 This option is deprecated now and the driver was removed, use
563 USB_OHCI_HCD_PLATFORM instead.
564
Mac Lin760efe62010-11-25 23:58:00 +0800565 Enable support for the CNS3XXX SOC's on-chip OHCI controller.
566 It is needed for low-speed USB 1.0 device support.
567
Hauke Mehrtensfa3364b2012-03-13 01:04:47 +0100568config USB_OHCI_HCD_PLATFORM
Manjunath Goudar928fb682013-06-03 20:46:08 +0530569 tristate "Generic OHCI driver for a platform device"
Hauke Mehrtensfa3364b2012-03-13 01:04:47 +0100570 default n
571 ---help---
572 Adds an OHCI host driver for a generic platform device, which
Peter Meerwald898d8282012-08-18 15:53:12 +0200573 provides a memory space and an irq.
Hauke Mehrtensfa3364b2012-03-13 01:04:47 +0100574
575 If unsure, say N.
576
Florian Fainelli3ad3ca02013-04-09 14:29:28 +0200577config USB_OCTEON_OHCI
578 bool "Octeon on-chip OHCI support"
David Daney9ddebc42013-05-22 15:10:46 +0000579 depends on CAVIUM_OCTEON_SOC
Florian Fainelli3ad3ca02013-04-09 14:29:28 +0200580 default USB_OCTEON_EHCI
581 select USB_OHCI_BIG_ENDIAN_MMIO
582 select USB_OHCI_LITTLE_ENDIAN
583 help
584 Enable support for the Octeon II SOC's on-chip OHCI
585 controller. It is needed for low-speed USB 1.0 device
586 support. All CN6XXX based chips with USB are supported.
587
Florian Fainelli3ad3ca02013-04-09 14:29:28 +0200588endif # USB_OHCI_HCD
589
Linus Torvalds1da177e2005-04-16 15:20:36 -0700590config USB_UHCI_HCD
591 tristate "UHCI HCD (most Intel and VIA) support"
Alan Sternccd95092013-05-14 13:54:12 -0400592 depends on PCI || USB_UHCI_SUPPORT_NON_PCI_HC
Linus Torvalds1da177e2005-04-16 15:20:36 -0700593 ---help---
594 The Universal Host Controller Interface is a standard by Intel for
595 accessing the USB hardware in the PC (which is also called the USB
596 host controller). If your USB host controller conforms to this
597 standard, you may want to say Y, but see below. All recent boards
598 with Intel PCI chipsets (like intel 430TX, 440FX, 440LX, 440BX,
599 i810, i820) conform to this standard. Also all VIA PCI chipsets
600 (like VIA VP2, VP3, MVP3, Apollo Pro, Apollo Pro II or Apollo Pro
Jan Andersson3db77392011-05-06 12:00:18 +0200601 133) and LEON/GRLIB SoCs with the GRUSBHC controller.
602 If unsure, say Y.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700603
604 To compile this driver as a module, choose M here: the
605 module will be called uhci-hcd.
606
Jan Anderssond3219d12011-05-06 12:00:17 +0200607config USB_UHCI_SUPPORT_NON_PCI_HC
608 bool
Alan Sternccd95092013-05-14 13:54:12 -0400609 default y if (SPARC_LEON || USB_UHCI_PLATFORM)
Tony Prisk100d4592012-07-21 22:58:53 +1200610
611config USB_UHCI_PLATFORM
Alan Sternccd95092013-05-14 13:54:12 -0400612 bool
Tony Prisk100d4592012-07-21 22:58:53 +1200613 default y if ARCH_VT8500
Jan Anderssond3219d12011-05-06 12:00:17 +0200614
Jan Andersson8452c672011-05-18 10:44:49 +0200615config USB_UHCI_BIG_ENDIAN_MMIO
616 bool
Alan Sternccd95092013-05-14 13:54:12 -0400617 default y if SPARC_LEON
Jan Andersson8452c672011-05-18 10:44:49 +0200618
Jan Andersson51e2f622011-05-18 10:44:51 +0200619config USB_UHCI_BIG_ENDIAN_DESC
620 bool
Alan Sternccd95092013-05-14 13:54:12 -0400621 default y if SPARC_LEON
Jan Andersson51e2f622011-05-18 10:44:51 +0200622
Anton Vorontsov236dd4d2009-01-10 05:03:21 +0300623config USB_FHCI_HCD
624 tristate "Freescale QE USB Host Controller support"
Florian Fainelli25e11ec2013-04-09 14:29:25 +0200625 depends on OF_GPIO && QE_GPIO && QUICC_ENGINE
Anton Vorontsov236dd4d2009-01-10 05:03:21 +0300626 select FSL_GTM
627 select QE_USB
628 help
629 This driver enables support for Freescale QE USB Host Controller
630 (as found on MPC8360 and MPC8323 processors), the driver supports
631 Full and Low Speed USB.
632
633config FHCI_DEBUG
634 bool "Freescale QE USB Host Controller debug support"
635 depends on USB_FHCI_HCD && DEBUG_FS
636 help
637 Say "y" to see some FHCI debug information and statistics
Lucas De Marchi25985ed2011-03-30 22:57:33 -0300638 through debugfs.
Anton Vorontsov236dd4d2009-01-10 05:03:21 +0300639
Tony Olechd774efe2006-09-13 11:27:35 +0100640config USB_U132_HCD
641 tristate "Elan U132 Adapter Host Controller"
Florian Fainelli25e11ec2013-04-09 14:29:25 +0200642 depends on USB_FTDI_ELAN
Tony Olechd774efe2006-09-13 11:27:35 +0100643 help
644 The U132 adapter is a USB to CardBus adapter specifically designed
645 for PC cards that contain an OHCI host controller. Typical PC cards
646 are the Orange Mobile 3G Option GlobeTrotter Fusion card. The U132
647 adapter will *NOT* work with PC cards that do not contain an OHCI
648 controller.
649
Matt LaPlante3cb2fcc2006-11-30 05:22:59 +0100650 For those PC cards that contain multiple OHCI controllers only the
Tony Olechd774efe2006-09-13 11:27:35 +0100651 first one is used.
652
653 The driver consists of two modules, the "ftdi-elan" module is a
654 USB client driver that interfaces to the FTDI chip within ELAN's
655 USB-to-PCMCIA adapter, and this "u132-hcd" module is a USB host
656 controller driver that talks to the OHCI controller within the
657 CardBus cards that are inserted in the U132 adapter.
658
659 This driver has been tested with a CardBus OHCI USB adapter, and
660 worked with a USB PEN Drive inserted into the first USB port of
661 the PCCARD. A rather pointless thing to do, but useful for testing.
662
663 It is safe to say M here.
664
665 See also <http://www.elandigitalsystems.com/support/ufaq/u132linux.php>
666
Linus Torvalds1da177e2005-04-16 15:20:36 -0700667config USB_SL811_HCD
668 tristate "SL811HS HCD support"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700669 help
670 The SL811HS is a single-port USB controller that supports either
671 host side or peripheral side roles. Enable this option if your
672 board has this chip, and you want to use it as a host controller.
673 If unsure, say N.
674
675 To compile this driver as a module, choose M here: the
676 module will be called sl811-hcd.
677
Mike Frysingerad7c56f2011-03-22 15:35:39 -0400678config USB_SL811_HCD_ISO
679 bool "partial ISO support"
680 depends on USB_SL811_HCD
681 help
682 The driver doesn't support iso_frame_desc (yet), but for some simple
683 devices that just queue one ISO frame per URB, then ISO transfers
684 "should" work using the normal urb status fields.
685
686 If unsure, say N.
687
David Brownellc6de2b62005-05-26 05:55:55 -0700688config USB_SL811_CS
689 tristate "CF/PCMCIA support for SL811HS HCD"
690 depends on USB_SL811_HCD && PCMCIA
David Brownellc6de2b62005-05-26 05:55:55 -0700691 help
692 Wraps a PCMCIA driver around the SL811HS HCD, supporting the RATOC
693 REX-CFU1U CF card (often used with PDAs). If unsure, say N.
694
695 To compile this driver as a module, choose M here: the
696 module will be called "sl811_cs".
697
Yoshihiro Shimoda5d304352007-05-10 13:18:19 +0900698config USB_R8A66597_HCD
M4rkusXXLfa0de2b2007-08-10 14:53:32 -0700699 tristate "R8A66597 HCD support"
Yoshihiro Shimoda5d304352007-05-10 13:18:19 +0900700 help
701 The R8A66597 is a USB 2.0 host and peripheral controller.
702
703 Enable this option if your board has this chip, and you want
704 to use it as a host controller. If unsure, say N.
705
706 To compile this driver as a module, choose M here: the
707 module will be called r8a66597-hcd.
708
Kuninori Morimoto034d7c12011-10-10 22:07:40 -0700709config USB_RENESAS_USBHS_HCD
710 tristate "Renesas USBHS HCD support"
Kuninori Morimoto034d7c12011-10-10 22:07:40 -0700711 depends on USB_RENESAS_USBHS
712 help
713 The Renesas USBHS is a USB 2.0 host and peripheral controller.
714
715 Enable this option if your board has this chip, and you want
716 to use it as a host controller. If unsure, say N.
717
718 To compile this driver as a module, choose M here: the
719 module will be called renesas-usbhs.
720
David Vrabel7e6133a2008-09-17 16:34:28 +0100721config USB_WHCI_HCD
Greg Kroah-Hartmaneb83be92012-09-14 21:15:50 -0700722 tristate "Wireless USB Host Controller Interface (WHCI) driver"
Randy Dunlap36f8ecb2012-01-27 15:47:03 -0800723 depends on PCI && USB && UWB
David Vrabel7e6133a2008-09-17 16:34:28 +0100724 select USB_WUSB
725 select UWB_WHCI
726 help
727 A driver for PCI-based Wireless USB Host Controllers that are
728 compliant with the WHCI specification.
729
730 To compile this driver a module, choose M here: the module
731 will be called "whci-hcd".
Inaky Perez-Gonzalezd09318b2008-09-17 16:34:30 +0100732
733config USB_HWA_HCD
Greg Kroah-Hartmaneb83be92012-09-14 21:15:50 -0700734 tristate "Host Wire Adapter (HWA) driver"
Thomas Pugliesecbb67192014-09-16 16:25:24 -0500735 depends on USB && UWB
Inaky Perez-Gonzalezd09318b2008-09-17 16:34:30 +0100736 select USB_WUSB
737 select UWB_HWA
738 help
739 This driver enables you to connect Wireless USB devices to
740 your system using a Host Wire Adaptor USB dongle. This is an
741 UWB Radio Controller and WUSB Host Controller connected to
742 your machine via USB (specified in WUSB1.0).
743
744 To compile this driver a module, choose M here: the module
745 will be called "hwa-hc".
Martin Fuzzey23d3e7a2009-11-21 12:14:48 +0100746
747config USB_IMX21_HCD
Sascha Hauer5de9ec42011-08-24 08:41:10 +0200748 tristate "i.MX21 HCD support"
Florian Fainelli25e11ec2013-04-09 14:29:25 +0200749 depends on ARM && ARCH_MXC
Martin Fuzzey23d3e7a2009-11-21 12:14:48 +0100750 help
751 This driver enables support for the on-chip USB host in the
Sascha Hauer5de9ec42011-08-24 08:41:10 +0200752 i.MX21 processor.
Martin Fuzzey23d3e7a2009-11-21 12:14:48 +0100753
754 To compile this driver as a module, choose M here: the
755 module will be called "imx21-hcd".
756
David Daney1643acc2010-10-08 14:47:52 -0700757
David Daney1643acc2010-10-08 14:47:52 -0700758
759config USB_OCTEON2_COMMON
760 bool
761 default y if USB_OCTEON_EHCI || USB_OCTEON_OHCI
Hauke Mehrtens62e11d12012-03-15 23:49:57 +0100762
763config USB_HCD_BCMA
764 tristate "BCMA usb host driver"
Greg Kroah-Hartmaneb83be92012-09-14 21:15:50 -0700765 depends on BCMA
Hauke Mehrtens62e11d12012-03-15 23:49:57 +0100766 select USB_OHCI_HCD_PLATFORM if USB_OHCI_HCD
767 select USB_EHCI_HCD_PLATFORM if USB_EHCI_HCD
768 help
Jesper Dangaard Brouer71c421d2012-06-15 12:01:33 +0200769 Enable support for the EHCI and OCHI host controller on an bcma bus.
Hauke Mehrtens62e11d12012-03-15 23:49:57 +0100770 It converts the bcma driver into two platform device drivers
771 for ehci and ohci.
772
773 If unsure, say N.
Hauke Mehrtens7043c2c2012-03-15 23:49:58 +0100774
775config USB_HCD_SSB
776 tristate "SSB usb host driver"
Greg Kroah-Hartmaneb83be92012-09-14 21:15:50 -0700777 depends on SSB
Hauke Mehrtens7043c2c2012-03-15 23:49:58 +0100778 select USB_OHCI_HCD_PLATFORM if USB_OHCI_HCD
779 select USB_EHCI_HCD_PLATFORM if USB_EHCI_HCD
780 help
Jesper Dangaard Brouer71c421d2012-06-15 12:01:33 +0200781 Enable support for the EHCI and OCHI host controller on an bcma bus.
Hauke Mehrtens7043c2c2012-03-15 23:49:58 +0100782 It converts the bcma driver into two platform device drivers
783 for ehci and ohci.
784
785 If unsure, say N.
Jack Pham726a85c2013-08-13 13:40:13 -0700786
787config USB_HCD_TEST_MODE
788 bool "HCD test mode support"
789 ---help---
790 Say 'Y' to enable additional software test modes that may be
791 supported by the host controller drivers.
792
793 One such test mode is the Embedded High-speed Host Electrical Test
794 (EHSET) for EHCI host controller hardware, specifically the "Single
795 Step Set Feature" test. Typically this will be enabled for On-the-Go
796 or embedded hosts that need to undergo USB-IF compliance testing with
797 the aid of special testing hardware. In the future, this may expand
798 to include other tests that require support from a HCD driver.
799
800 This option is of interest only to developers who need to validate
801 their USB hardware designs. It is not needed for normal use. If
802 unsure, say N.