Commit | Line | Data |
---|---|---|
1da177e4 LT |
1 | # |
2 | # USB Gadget support on a system involves | |
3 | # (a) a peripheral controller, and | |
4 | # (b) the gadget driver using it. | |
5 | # | |
6 | # NOTE: Gadget support ** DOES NOT ** depend on host-side CONFIG_USB !! | |
7 | # | |
8 | # - Host systems (like PCs) need CONFIG_USB (with "A" jacks). | |
9 | # - Peripherals (like PDAs) need CONFIG_USB_GADGET (with "B" jacks). | |
cab00891 | 10 | # - Some systems have both kinds of controllers. |
1da177e4 LT |
11 | # |
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). | |
14 | # | |
1da177e4 | 15 | |
b75be4ab DC |
16 | menuconfig USB_GADGET |
17 | tristate "USB Gadget Support" | |
86dc243c | 18 | select NLS |
1da177e4 LT |
19 | help |
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. | |
24 | ||
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 | |
e113f29c | 29 | familiar host side controllers have names like "EHCI", "OHCI", |
1da177e4 LT |
30 | or "UHCI", and are usually integrated into southbridges on PC |
31 | motherboards. | |
32 | ||
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.) | |
38 | ||
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). | |
41 | ||
42 | For more information, see <http://www.linux-usb.org/gadget> and | |
43 | the kernel DocBook documentation for this API. | |
44 | ||
b75be4ab DC |
45 | if USB_GADGET |
46 | ||
70790f63 | 47 | config USB_GADGET_DEBUG |
afd0e0f2 | 48 | boolean "Debugging messages (DEVELOPMENT)" |
36e893d2 | 49 | depends on DEBUG_KERNEL |
70790f63 DB |
50 | help |
51 | Many controller and gadget drivers will print some debugging | |
52 | messages if you use this option to ask for those messages. | |
53 | ||
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 | |
59 | production build. | |
60 | ||
1da177e4 | 61 | config USB_GADGET_DEBUG_FILES |
afd0e0f2 | 62 | boolean "Debugging information files (DEVELOPMENT)" |
36e893d2 | 63 | depends on PROC_FS |
1da177e4 LT |
64 | help |
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". | |
71 | ||
914a3f3b | 72 | config USB_GADGET_DEBUG_FS |
afd0e0f2 | 73 | boolean "Debugging information files in debugfs (DEVELOPMENT)" |
36e893d2 | 74 | depends on DEBUG_FS |
914a3f3b HS |
75 | help |
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". | |
82 | ||
36e893d2 DB |
83 | config USB_GADGET_VBUS_DRAW |
84 | int "Maximum VBUS Power usage (2-500 mA)" | |
85 | range 2 500 | |
86 | default 2 | |
87 | help | |
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. | |
92 | ||
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. | |
96 | ||
97 | This value will be used except for system-specific gadget | |
98 | drivers that have more specific information. | |
99 | ||
6532c7fd PF |
100 | config USB_GADGET_STORAGE_NUM_BUFFERS |
101 | int "Number of storage pipeline buffers" | |
102 | range 2 4 | |
103 | default 2 | |
104 | help | |
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. | |
114 | If unsure, say 2. | |
115 | ||
1da177e4 LT |
116 | # |
117 | # USB Peripheral Controller Support | |
118 | # | |
a7a19fac DB |
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. | |
125 | # | |
1da177e4 LT |
126 | choice |
127 | prompt "USB Peripheral Controller" | |
1da177e4 LT |
128 | help |
129 | A USB device uses a controller to talk to its host. | |
130 | Systems should have only one such upstream link. | |
131 | Many controller drivers are platform-specific; these | |
132 | often need board-specific hooks. | |
133 | ||
a7a19fac DB |
134 | # |
135 | # Integrated controllers | |
136 | # | |
137 | ||
193ab2a6 FB |
138 | config USB_AT91 |
139 | tristate "Atmel AT91 USB Device Port" | |
aa781af0 | 140 | depends on ARCH_AT91 && !ARCH_AT91SAM9RL && !ARCH_AT91CAP9 && !ARCH_AT91SAM9G45 |
55d402d8 | 141 | help |
a7a19fac DB |
142 | Many Atmel AT91 processors (such as the AT91RM2000) have a |
143 | full speed USB Device Port with support for five configurable | |
144 | endpoints (plus endpoint zero). | |
55d402d8 TD |
145 | |
146 | Say "y" to link the driver statically, or "m" to build a | |
a7a19fac | 147 | dynamically linked module called "at91_udc" and force all |
55d402d8 TD |
148 | gadget drivers to also be dynamically linked. |
149 | ||
193ab2a6 FB |
150 | config USB_ATMEL_USBA |
151 | tristate "Atmel USBA" | |
914a3f3b | 152 | select USB_GADGET_DUALSPEED |
aa781af0 | 153 | depends on AVR32 || ARCH_AT91CAP9 || ARCH_AT91SAM9RL || ARCH_AT91SAM9G45 |
914a3f3b HS |
154 | help |
155 | USBA is the integrated high-speed USB Device controller on | |
ba45ca43 | 156 | the AT32AP700x, some AT91SAM9 and AT91CAP9 processors from Atmel. |
914a3f3b | 157 | |
193ab2a6 FB |
158 | config USB_FSL_USB2 |
159 | tristate "Freescale Highspeed USB DR Peripheral Controller" | |
54e4026b | 160 | depends on FSL_SOC || ARCH_MXC |
b504882d | 161 | select USB_GADGET_DUALSPEED |
018b97d0 | 162 | select USB_FSL_MPH_DR_OF if OF |
b504882d LY |
163 | help |
164 | Some of Freescale PowerPC processors have a High Speed | |
165 | Dual-Role(DR) USB controller, which supports device mode. | |
166 | ||
167 | The number of programmable endpoints is different through | |
168 | SOC revisions. | |
169 | ||
170 | Say "y" to link the driver statically, or "m" to build a | |
171 | dynamically linked module called "fsl_usb2_udc" and force | |
172 | all gadget drivers to also be dynamically linked. | |
173 | ||
193ab2a6 FB |
174 | config USB_FUSB300 |
175 | tristate "Faraday FUSB300 USB Peripheral Controller" | |
ac17317d | 176 | depends on !PHYS_ADDR_T_64BIT |
0fe6f1d1 YHC |
177 | select USB_GADGET_DUALSPEED |
178 | help | |
179 | Faraday usb device controller FUSB300 driver | |
180 | ||
193ab2a6 FB |
181 | config USB_OMAP |
182 | tristate "OMAP USB Device Controller" | |
a7a19fac | 183 | depends on ARCH_OMAP |
f1c9e151 | 184 | select ISP1301_OMAP if MACH_OMAP_H2 || MACH_OMAP_H3 || MACH_OMAP_H4_OTG |
54b9ed35 | 185 | select USB_OTG_UTILS if ARCH_OMAP |
a7a19fac DB |
186 | help |
187 | Many Texas Instruments OMAP processors have flexible full | |
188 | speed USB device controllers, with support for up to 30 | |
189 | endpoints (plus endpoint zero). This driver supports the | |
190 | controller in the OMAP 1611, and should work with controllers | |
191 | in other OMAP processors too, given minor tweaks. | |
1da177e4 LT |
192 | |
193 | Say "y" to link the driver statically, or "m" to build a | |
a7a19fac | 194 | dynamically linked module called "omap_udc" and force all |
1da177e4 LT |
195 | gadget drivers to also be dynamically linked. |
196 | ||
193ab2a6 FB |
197 | config USB_PXA25X |
198 | tristate "PXA 25x or IXP 4xx" | |
1da177e4 | 199 | depends on (ARCH_PXA && PXA25x) || ARCH_IXP4XX |
09963911 | 200 | select USB_OTG_UTILS |
1da177e4 LT |
201 | help |
202 | Intel's PXA 25x series XScale ARM-5TE processors include | |
203 | an integrated full speed USB 1.1 device controller. The | |
204 | controller in the IXP 4xx series is register-compatible. | |
205 | ||
206 | It has fifteen fixed-function endpoints, as well as endpoint | |
207 | zero (for control transfers). | |
208 | ||
209 | Say "y" to link the driver statically, or "m" to build a | |
7a857620 | 210 | dynamically linked module called "pxa25x_udc" and force all |
1da177e4 LT |
211 | gadget drivers to also be dynamically linked. |
212 | ||
1da177e4 LT |
213 | # if there's only one gadget driver, using only two bulk endpoints, |
214 | # don't waste memory for the other endpoints | |
7a857620 | 215 | config USB_PXA25X_SMALL |
193ab2a6 | 216 | depends on USB_PXA25X |
1da177e4 LT |
217 | bool |
218 | default n if USB_ETH_RNDIS | |
219 | default y if USB_ZERO | |
220 | default y if USB_ETH | |
221 | default y if USB_G_SERIAL | |
222 | ||
193ab2a6 FB |
223 | config USB_R8A66597 |
224 | tristate "Renesas R8A66597 USB Peripheral Controller" | |
c4144247 YS |
225 | select USB_GADGET_DUALSPEED |
226 | help | |
227 | R8A66597 is a discrete USB host and peripheral controller chip that | |
228 | supports both full and high speed USB 2.0 data transfers. | |
229 | It has nine configurable endpoints, and endpoint zero. | |
230 | ||
231 | Say "y" to link the driver statically, or "m" to build a | |
232 | dynamically linked module called "r8a66597_udc" and force all | |
233 | gadget drivers to also be dynamically linked. | |
234 | ||
030ed1fc | 235 | config USB_RENESAS_USBHS_UDC |
193ab2a6 | 236 | tristate 'Renesas USBHS controller' |
030ed1fc KM |
237 | depends on USB_RENESAS_USBHS |
238 | select USB_GADGET_DUALSPEED | |
2f98382d | 239 | help |
193ab2a6 FB |
240 | Renesas USBHS is a discrete USB host and peripheral controller chip |
241 | that supports both full and high speed USB 2.0 data transfers. | |
242 | It has nine or more configurable endpoints, and endpoint zero. | |
2f98382d | 243 | |
193ab2a6 FB |
244 | Say "y" to link the driver statically, or "m" to build a |
245 | dynamically linked module called "renesas_usbhs" and force all | |
246 | gadget drivers to also be dynamically linked. | |
2f98382d | 247 | |
193ab2a6 FB |
248 | config USB_PXA27X |
249 | tristate "PXA 27x" | |
9f5351b7 | 250 | depends on ARCH_PXA && (PXA27x || PXA3xx) |
7fec3c25 | 251 | select USB_OTG_UTILS |
d75379a5 RJ |
252 | help |
253 | Intel's PXA 27x series XScale ARM v5TE processors include | |
254 | an integrated full speed USB 1.1 device controller. | |
255 | ||
256 | It has up to 23 endpoints, as well as endpoint zero (for | |
257 | control transfers). | |
258 | ||
259 | Say "y" to link the driver statically, or "m" to build a | |
260 | dynamically linked module called "pxa27x_udc" and force all | |
261 | gadget drivers to also be dynamically linked. | |
262 | ||
193ab2a6 FB |
263 | config USB_S3C_HSOTG |
264 | tristate "S3C HS/OtG USB Device controller" | |
5b7d70c6 | 265 | depends on S3C_DEV_USB_HSOTG |
0287e43d | 266 | select USB_GADGET_DUALSPEED |
5b7d70c6 BD |
267 | help |
268 | The Samsung S3C64XX USB2.0 high-speed gadget controller | |
269 | integrated into the S3C64XX series SoC. | |
270 | ||
193ab2a6 | 271 | config USB_IMX |
2e5a08a3 SH |
272 | tristate "Freescale i.MX1 USB Peripheral Controller" |
273 | depends on ARCH_MXC | |
c03e7d4b | 274 | help |
2e5a08a3 SH |
275 | Freescale's i.MX1 includes an integrated full speed |
276 | USB 1.1 device controller. | |
c03e7d4b PZ |
277 | |
278 | It has Six fixed-function endpoints, as well as endpoint | |
279 | zero (for control transfers). | |
280 | ||
281 | Say "y" to link the driver statically, or "m" to build a | |
282 | dynamically linked module called "imx_udc" and force all | |
283 | gadget drivers to also be dynamically linked. | |
284 | ||
193ab2a6 FB |
285 | config USB_S3C2410 |
286 | tristate "S3C2410 USB Device Controller" | |
a7a19fac | 287 | depends on ARCH_S3C2410 |
1da177e4 | 288 | help |
a7a19fac DB |
289 | Samsung's S3C2410 is an ARM-4 processor with an integrated |
290 | full speed USB 1.1 device controller. It has 4 configurable | |
291 | endpoints, as well as endpoint zero (for control transfers). | |
1da177e4 | 292 | |
a7a19fac DB |
293 | This driver has been tested on the S3C2410, S3C2412, and |
294 | S3C2440 processors. | |
1da177e4 | 295 | |
a7a19fac DB |
296 | config USB_S3C2410_DEBUG |
297 | boolean "S3C2410 udc debug messages" | |
193ab2a6 | 298 | depends on USB_S3C2410 |
1da177e4 | 299 | |
193ab2a6 FB |
300 | config USB_S3C_HSUDC |
301 | tristate "S3C2416, S3C2443 and S3C2450 USB Device Controller" | |
a9df304c TA |
302 | depends on ARCH_S3C2410 |
303 | select USB_GADGET_DUALSPEED | |
304 | help | |
305 | Samsung's S3C2416, S3C2443 and S3C2450 is an ARM9 based SoC | |
306 | integrated with dual speed USB 2.0 device controller. It has | |
307 | 8 endpoints, as well as endpoint zero. | |
308 | ||
309 | This driver has been tested on S3C2416 and S3C2450 processors. | |
310 | ||
5e6c86b0 NZ |
311 | config USB_MV_UDC |
312 | tristate "Marvell USB2.0 Device Controller" | |
e7cddda4 | 313 | select USB_GADGET_DUALSPEED |
314 | help | |
5e6c86b0 NZ |
315 | Marvell Socs (including PXA and MMP series) include a high speed |
316 | USB2.0 OTG controller, which can be configured as high speed or | |
317 | full speed USB peripheral. | |
72246da4 | 318 | |
a7a19fac DB |
319 | # |
320 | # Controllers available in both integrated and discrete versions | |
321 | # | |
1da177e4 | 322 | |
a7a19fac | 323 | # musb builds in ../musb along with host support |
550a7375 | 324 | config USB_GADGET_MUSB_HDRC |
193ab2a6 | 325 | tristate "Inventra HDRC USB Peripheral (TI, ADI, ...)" |
b61ae342 | 326 | depends on USB_MUSB_HDRC |
550a7375 | 327 | select USB_GADGET_DUALSPEED |
550a7375 FB |
328 | help |
329 | This OTG-capable silicon IP is used in dual designs including | |
085ad406 | 330 | the TI DaVinci, OMAP 243x, OMAP 343x, TUSB 6010, and ADI Blackfin |
550a7375 | 331 | |
193ab2a6 FB |
332 | config USB_M66592 |
333 | tristate "Renesas M66592 USB Peripheral Controller" | |
a7a19fac | 334 | select USB_GADGET_DUALSPEED |
1da177e4 | 335 | help |
a7a19fac DB |
336 | M66592 is a discrete USB peripheral controller chip that |
337 | supports both full and high speed USB 2.0 data transfers. | |
338 | It has seven configurable endpoints, and endpoint zero. | |
1da177e4 LT |
339 | |
340 | Say "y" to link the driver statically, or "m" to build a | |
a7a19fac | 341 | dynamically linked module called "m66592_udc" and force all |
1da177e4 LT |
342 | gadget drivers to also be dynamically linked. |
343 | ||
a7a19fac DB |
344 | # |
345 | # Controllers available only in discrete form (and all PCI controllers) | |
346 | # | |
347 | ||
193ab2a6 FB |
348 | config USB_AMD5536UDC |
349 | tristate "AMD5536 UDC" | |
a7a19fac DB |
350 | depends on PCI |
351 | select USB_GADGET_DUALSPEED | |
3fc154b6 | 352 | help |
a7a19fac DB |
353 | The AMD5536 UDC is part of the AMD Geode CS5536, an x86 southbridge. |
354 | It is a USB Highspeed DMA capable USB device controller. Beside ep0 | |
355 | it provides 4 IN and 4 OUT endpoints (bulk or interrupt type). | |
356 | The UDC port supports OTG operation, and may be used as a host port | |
357 | if it's not being used to implement peripheral or OTG roles. | |
3fc154b6 | 358 | |
a7a19fac DB |
359 | Say "y" to link the driver statically, or "m" to build a |
360 | dynamically linked module called "amd5536udc" and force all | |
361 | gadget drivers to also be dynamically linked. | |
3fc154b6 | 362 | |
193ab2a6 FB |
363 | config USB_FSL_QE |
364 | tristate "Freescale QE/CPM USB Device Controller" | |
3948f0e0 LY |
365 | depends on FSL_SOC && (QUICC_ENGINE || CPM) |
366 | help | |
367 | Some of Freescale PowerPC processors have a Full Speed | |
368 | QE/CPM2 USB controller, which support device mode with 4 | |
369 | programmable endpoints. This driver supports the | |
370 | controller in the MPC8360 and MPC8272, and should work with | |
371 | controllers having QE or CPM2, given minor tweaks. | |
372 | ||
373 | Set CONFIG_USB_GADGET to "m" to build this driver as a | |
692105b8 | 374 | dynamically linked module called "fsl_qe_udc". |
3948f0e0 | 375 | |
193ab2a6 FB |
376 | config USB_CI13XXX_PCI |
377 | tristate "MIPS USB CI13xxx PCI UDC" | |
aa69a809 DL |
378 | depends on PCI |
379 | select USB_GADGET_DUALSPEED | |
380 | help | |
381 | MIPS USB IP core family device controller | |
382 | Currently it only supports IP part number CI13412 | |
383 | ||
384 | Say "y" to link the driver statically, or "m" to build a | |
385 | dynamically linked module called "ci13xxx_udc" and force all | |
386 | gadget drivers to also be dynamically linked. | |
387 | ||
193ab2a6 FB |
388 | config USB_NET2272 |
389 | tristate "PLX NET2272" | |
ceb80363 SL |
390 | select USB_GADGET_DUALSPEED |
391 | help | |
392 | PLX NET2272 is a USB peripheral controller which supports | |
393 | both full and high speed USB 2.0 data transfers. | |
394 | ||
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. | |
400 | ||
193ab2a6 | 401 | config USB_NET2272_DMA |
ceb80363 | 402 | boolean "Support external DMA controller" |
193ab2a6 | 403 | depends on USB_NET2272 |
ceb80363 SL |
404 | help |
405 | The NET2272 part can optionally support an external DMA | |
406 | controller, but your board has to have support in the | |
407 | driver itself. | |
408 | ||
409 | If unsure, say "N" here. The driver works fine in PIO mode. | |
410 | ||
193ab2a6 FB |
411 | config USB_NET2280 |
412 | tristate "NetChip 228x" | |
a7a19fac DB |
413 | depends on PCI |
414 | select USB_GADGET_DUALSPEED | |
415 | help | |
416 | NetChip 2280 / 2282 is a PCI based USB peripheral controller which | |
417 | supports both full and high speed USB 2.0 data transfers. | |
3fc154b6 | 418 | |
a7a19fac DB |
419 | It has six configurable endpoints, as well as endpoint zero |
420 | (for control transfers) and several endpoints with dedicated | |
421 | functions. | |
422 | ||
423 | Say "y" to link the driver statically, or "m" to build a | |
424 | dynamically linked module called "net2280" and force all | |
425 | gadget drivers to also be dynamically linked. | |
426 | ||
193ab2a6 FB |
427 | config USB_GOKU |
428 | tristate "Toshiba TC86C001 'Goku-S'" | |
a7a19fac | 429 | depends on PCI |
bae4bd84 | 430 | help |
a7a19fac DB |
431 | The Toshiba TC86C001 is a PCI device which includes controllers |
432 | for full speed USB devices, IDE, I2C, SIO, plus a USB host (OHCI). | |
433 | ||
434 | The device controller has three configurable (bulk or interrupt) | |
435 | endpoints, plus endpoint zero (for control transfers). | |
bae4bd84 DB |
436 | |
437 | Say "y" to link the driver statically, or "m" to build a | |
a7a19fac | 438 | dynamically linked module called "goku_udc" and to force all |
bae4bd84 DB |
439 | gadget drivers to also be dynamically linked. |
440 | ||
193ab2a6 FB |
441 | config USB_LANGWELL |
442 | tristate "Intel Langwell USB Device Controller" | |
5be19a9d | 443 | depends on PCI |
ac17317d | 444 | depends on !PHYS_ADDR_T_64BIT |
5be19a9d XS |
445 | select USB_GADGET_DUALSPEED |
446 | help | |
447 | Intel Langwell USB Device Controller is a High-Speed USB | |
448 | On-The-Go device controller. | |
449 | ||
450 | The number of programmable endpoints is different through | |
451 | controller revision. | |
452 | ||
453 | Say "y" to link the driver statically, or "m" to build a | |
454 | dynamically linked module called "langwell_udc" and force all | |
455 | gadget drivers to also be dynamically linked. | |
456 | ||
193ab2a6 | 457 | config USB_EG20T |
731ad81e | 458 | tristate "Intel EG20T PCH/LAPIS Semiconductor IOH(ML7213/ML7831) UDC" |
f646cf94 TO |
459 | depends on PCI |
460 | select USB_GADGET_DUALSPEED | |
461 | help | |
462 | This is a USB device driver for EG20T PCH. | |
463 | EG20T PCH is the platform controller hub that is used in Intel's | |
464 | general embedded platform. EG20T PCH has USB device interface. | |
465 | Using this interface, it is able to access system devices connected | |
466 | to USB device. | |
467 | This driver enables USB device function. | |
468 | USB device is a USB peripheral controller which | |
469 | supports both full and high speed USB 2.0 data transfers. | |
470 | This driver supports both control transfer and bulk transfer modes. | |
471 | This driver dose not support interrupt transfer or isochronous | |
472 | transfer modes. | |
473 | ||
731ad81e | 474 | This driver also can be used for LAPIS Semiconductor's ML7213 which is |
06f1b971 | 475 | for IVI(In-Vehicle Infotainment) use. |
731ad81e TM |
476 | ML7831 is for general purpose use. |
477 | ML7213/ML7831 is companion chip for Intel Atom E6xx series. | |
478 | ML7213/ML7831 is completely compatible for Intel EG20T PCH. | |
06f1b971 | 479 | |
193ab2a6 FB |
480 | config USB_CI13XXX_MSM |
481 | tristate "MIPS USB CI13xxx for MSM" | |
33f82f38 PK |
482 | depends on ARCH_MSM |
483 | select USB_GADGET_DUALSPEED | |
dfb2130c | 484 | select USB_MSM_OTG |
33f82f38 PK |
485 | help |
486 | MSM SoC has chipidea USB controller. This driver uses | |
487 | ci13xxx_udc core. | |
488 | This driver depends on OTG driver for PHY initialization, | |
489 | clock management, powering up VBUS, and power management. | |
8cf28f1f PK |
490 | This driver is not supported on boards like trout which |
491 | has an external PHY. | |
33f82f38 PK |
492 | |
493 | Say "y" to link the driver statically, or "m" to build a | |
494 | dynamically linked module called "ci13xxx_msm" and force all | |
495 | gadget drivers to also be dynamically linked. | |
496 | ||
a7a19fac DB |
497 | # |
498 | # LAST -- dummy/emulated controller | |
499 | # | |
1da177e4 | 500 | |
193ab2a6 FB |
501 | config USB_DUMMY_HCD |
502 | tristate "Dummy HCD (DEVELOPMENT)" | |
afd0e0f2 | 503 | depends on USB=y || (USB=m && USB_GADGET=m) |
1da177e4 | 504 | select USB_GADGET_DUALSPEED |
1cd8fd28 | 505 | select USB_GADGET_SUPERSPEED |
1da177e4 LT |
506 | help |
507 | This host controller driver emulates USB, looping all data transfer | |
508 | requests back to a USB "gadget driver" in the same host. The host | |
509 | side is the master; the gadget side is the slave. Gadget drivers | |
510 | can be high, full, or low speed; and they have access to endpoints | |
511 | like those from NET2280, PXA2xx, or SA1100 hardware. | |
193ab2a6 | 512 | |
1da177e4 LT |
513 | This may help in some stages of creating a driver to embed in a |
514 | Linux device, since it lets you debug several parts of the gadget | |
515 | driver without its hardware or drivers being involved. | |
193ab2a6 | 516 | |
1da177e4 LT |
517 | Since such a gadget side driver needs to interoperate with a host |
518 | side Linux-USB device driver, this may help to debug both sides | |
519 | of a USB protocol stack. | |
520 | ||
521 | Say "y" to link the driver statically, or "m" to build a | |
522 | dynamically linked module called "dummy_hcd" and force all | |
523 | gadget drivers to also be dynamically linked. | |
524 | ||
1da177e4 LT |
525 | # NOTE: Please keep dummy_hcd LAST so that "real hardware" appears |
526 | # first and will be selected by default. | |
527 | ||
528 | endchoice | |
529 | ||
97b2f900 | 530 | # Selected by UDC drivers that support high-speed operation. |
1da177e4 LT |
531 | config USB_GADGET_DUALSPEED |
532 | bool | |
1da177e4 | 533 | |
bdb64d72 TB |
534 | # Selected by UDC drivers that support super-speed opperation |
535 | config USB_GADGET_SUPERSPEED | |
536 | bool | |
bdb64d72 TB |
537 | depends on USB_GADGET_DUALSPEED |
538 | ||
1da177e4 LT |
539 | # |
540 | # USB Gadget Drivers | |
541 | # | |
542 | choice | |
543 | tristate "USB Gadget Drivers" | |
1da177e4 LT |
544 | default USB_ETH |
545 | help | |
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. | |
552 | ||
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. | |
560 | ||
561 | # this first set of drivers all depend on bulk-capable hardware. | |
562 | ||
563 | config USB_ZERO | |
564 | tristate "Gadget Zero (DEVELOPMENT)" | |
1da177e4 LT |
565 | help |
566 | Gadget Zero is a two-configuration device. It either sinks and | |
567 | sources bulk data; or it loops back a configurable number of | |
568 | transfers. It also implements control requests, for "chapter 9" | |
569 | conformance. The driver needs only two bulk-capable endpoints, so | |
570 | it can work on top of most device-side usb controllers. It's | |
571 | useful for testing, and is also a working example showing how | |
572 | USB "gadget drivers" can be written. | |
573 | ||
574 | Make this be the first driver you try using on top of any new | |
575 | USB peripheral controller driver. Then you can use host-side | |
576 | test software, like the "usbtest" driver, to put your hardware | |
577 | and its driver through a basic set of functional tests. | |
578 | ||
579 | Gadget Zero also works with the host-side "usb-skeleton" driver, | |
580 | and with many kinds of host-side test software. You may need | |
581 | to tweak product and vendor IDs before host software knows about | |
582 | this device, and arrange to select an appropriate configuration. | |
583 | ||
584 | Say "y" to link the driver statically, or "m" to build a | |
585 | dynamically linked module called "g_zero". | |
586 | ||
587 | config USB_ZERO_HNPTEST | |
588 | boolean "HNP Test Device" | |
589 | depends on USB_ZERO && USB_OTG | |
590 | help | |
591 | You can configure this device to enumerate using the device | |
592 | identifiers of the USB-OTG test device. That means that when | |
593 | this gadget connects to another OTG device, with this one using | |
594 | the "B-Peripheral" role, that device will use HNP to let this | |
595 | one serve as the USB host instead (in the "B-Host" role). | |
596 | ||
c6994e6f BW |
597 | config USB_AUDIO |
598 | tristate "Audio Gadget (EXPERIMENTAL)" | |
599 | depends on SND | |
04950737 | 600 | select SND_PCM |
c6994e6f BW |
601 | help |
602 | Gadget Audio is compatible with USB Audio Class specification 1.0. | |
603 | It will include at least one AudioControl interface, zero or more | |
604 | AudioStream interface and zero or more MIDIStream interface. | |
605 | ||
606 | Gadget Audio will use on-board ALSA (CONFIG_SND) audio card to | |
607 | playback or capture audio stream. | |
608 | ||
609 | Say "y" to link the driver statically, or "m" to build a | |
610 | dynamically linked module called "g_audio". | |
611 | ||
1da177e4 LT |
612 | config USB_ETH |
613 | tristate "Ethernet Gadget (with CDC Ethernet support)" | |
614 | depends on NET | |
9e221be8 | 615 | select CRC32 |
1da177e4 | 616 | help |
9b39e9dd BN |
617 | This driver implements Ethernet style communication, in one of |
618 | several ways: | |
1da177e4 LT |
619 | |
620 | - The "Communication Device Class" (CDC) Ethernet Control Model. | |
621 | That protocol is often avoided with pure Ethernet adapters, in | |
622 | favor of simpler vendor-specific hardware, but is widely | |
623 | supported by firmware for smart network devices. | |
624 | ||
625 | - On hardware can't implement that protocol, a simple CDC subset | |
626 | is used, placing fewer demands on USB. | |
627 | ||
9b39e9dd BN |
628 | - CDC Ethernet Emulation Model (EEM) is a newer standard that has |
629 | a simpler interface that can be used by more USB hardware. | |
630 | ||
631 | RNDIS support is an additional option, more demanding than than | |
632 | subset. | |
1da177e4 LT |
633 | |
634 | Within the USB device, this gadget driver exposes a network device | |
635 | "usbX", where X depends on what other networking devices you have. | |
636 | Treat it like a two-node Ethernet link: host, and gadget. | |
637 | ||
638 | The Linux-USB host-side "usbnet" driver interoperates with this | |
639 | driver, so that deep I/O queues can be supported. On 2.4 kernels, | |
640 | use "CDCEther" instead, if you're using the CDC option. That CDC | |
641 | mode should also interoperate with standard CDC Ethernet class | |
642 | drivers on other host operating systems. | |
643 | ||
644 | Say "y" to link the driver statically, or "m" to build a | |
645 | dynamically linked module called "g_ether". | |
646 | ||
647 | config USB_ETH_RNDIS | |
afd0e0f2 RD |
648 | bool "RNDIS support" |
649 | depends on USB_ETH | |
1da177e4 LT |
650 | default y |
651 | help | |
652 | Microsoft Windows XP bundles the "Remote NDIS" (RNDIS) protocol, | |
653 | and Microsoft provides redistributable binary RNDIS drivers for | |
654 | older versions of Windows. | |
655 | ||
656 | If you say "y" here, the Ethernet gadget driver will try to provide | |
657 | a second device configuration, supporting RNDIS to talk to such | |
658 | Microsoft USB hosts. | |
659 | ||
660 | To make MS-Windows work with this, use Documentation/usb/linux.inf | |
661 | as the "driver info file". For versions of MS-Windows older than | |
662 | XP, you'll need to download drivers from Microsoft's website; a URL | |
663 | is given in comments found in that info file. | |
664 | ||
9b39e9dd BN |
665 | config USB_ETH_EEM |
666 | bool "Ethernet Emulation Model (EEM) support" | |
667 | depends on USB_ETH | |
668 | default n | |
669 | help | |
670 | CDC EEM is a newer USB standard that is somewhat simpler than CDC ECM | |
671 | and therefore can be supported by more hardware. Technically ECM and | |
672 | EEM are designed for different applications. The ECM model extends | |
673 | the network interface to the target (e.g. a USB cable modem), and the | |
674 | EEM model is for mobile devices to communicate with hosts using | |
675 | ethernet over USB. For Linux gadgets, however, the interface with | |
676 | the host is the same (a usbX device), so the differences are minimal. | |
677 | ||
678 | If you say "y" here, the Ethernet gadget driver will use the EEM | |
679 | protocol rather than ECM. If unsure, say "n". | |
680 | ||
6c34d288 YK |
681 | config USB_G_NCM |
682 | tristate "Network Control Model (NCM) support" | |
683 | depends on NET | |
684 | select CRC32 | |
685 | help | |
686 | This driver implements USB CDC NCM subclass standard. NCM is | |
687 | an advanced protocol for Ethernet encapsulation, allows grouping | |
688 | of several ethernet frames into one USB transfer and diffferent | |
689 | alignment possibilities. | |
690 | ||
691 | Say "y" to link the driver statically, or "m" to build a | |
692 | dynamically linked module called "g_ncm". | |
693 | ||
1da177e4 LT |
694 | config USB_GADGETFS |
695 | tristate "Gadget Filesystem (EXPERIMENTAL)" | |
696 | depends on EXPERIMENTAL | |
697 | help | |
698 | This driver provides a filesystem based API that lets user mode | |
699 | programs implement a single-configuration USB device, including | |
700 | endpoint I/O and control requests that don't relate to enumeration. | |
701 | All endpoints, transfer speeds, and transfer types supported by | |
702 | the hardware are available, through read() and write() calls. | |
703 | ||
afd0e0f2 RD |
704 | Currently, this option is still labelled as EXPERIMENTAL because |
705 | of existing race conditions in the underlying in-kernel AIO core. | |
706 | ||
1da177e4 LT |
707 | Say "y" to link the driver statically, or "m" to build a |
708 | dynamically linked module called "gadgetfs". | |
709 | ||
c6c56008 MN |
710 | config USB_FUNCTIONFS |
711 | tristate "Function Filesystem (EXPERIMENTAL)" | |
712 | depends on EXPERIMENTAL | |
f8dae531 | 713 | select USB_FUNCTIONFS_GENERIC if !(USB_FUNCTIONFS_ETH || USB_FUNCTIONFS_RNDIS) |
c6c56008 | 714 | help |
eabf0f5f MP |
715 | The Function Filesystem (FunctionFS) lets one create USB |
716 | composite functions in user space in the same way GadgetFS | |
c6c56008 MN |
717 | lets one create USB gadgets in user space. This allows creation |
718 | of composite gadgets such that some of the functions are | |
719 | implemented in kernel space (for instance Ethernet, serial or | |
720 | mass storage) and other are implemented in user space. | |
721 | ||
f8dae531 MN |
722 | If you say "y" or "m" here you will be able what kind of |
723 | configurations the gadget will provide. | |
724 | ||
c6c56008 MN |
725 | Say "y" to link the driver statically, or "m" to build |
726 | a dynamically linked module called "g_ffs". | |
727 | ||
728 | config USB_FUNCTIONFS_ETH | |
f8dae531 | 729 | bool "Include configuration with CDC ECM (Ethernet)" |
17b2765e | 730 | depends on USB_FUNCTIONFS && NET |
c6c56008 | 731 | help |
eabf0f5f MP |
732 | Include a configuration with CDC ECM function (Ethernet) and the |
733 | Function Filesystem. | |
c6c56008 MN |
734 | |
735 | config USB_FUNCTIONFS_RNDIS | |
f8dae531 | 736 | bool "Include configuration with RNDIS (Ethernet)" |
17b2765e | 737 | depends on USB_FUNCTIONFS && NET |
c6c56008 | 738 | help |
eabf0f5f | 739 | Include a configuration with RNDIS function (Ethernet) and the Filesystem. |
c6c56008 MN |
740 | |
741 | config USB_FUNCTIONFS_GENERIC | |
742 | bool "Include 'pure' configuration" | |
f8dae531 | 743 | depends on USB_FUNCTIONFS |
c6c56008 | 744 | help |
f8dae531 MN |
745 | Include a configuration with the Function Filesystem alone with |
746 | no Ethernet interface. | |
c6c56008 | 747 | |
1da177e4 | 748 | config USB_FILE_STORAGE |
664a51a8 | 749 | tristate "File-backed Storage Gadget (DEPRECATED)" |
87840289 | 750 | depends on BLOCK |
1da177e4 LT |
751 | help |
752 | The File-backed Storage Gadget acts as a USB Mass Storage | |
753 | disk drive. As its storage repository it can use a regular | |
754 | file or a block device (in much the same way as the "loop" | |
755 | device driver), specified as a module parameter. | |
756 | ||
757 | Say "y" to link the driver statically, or "m" to build a | |
758 | dynamically linked module called "g_file_storage". | |
759 | ||
664a51a8 AS |
760 | NOTE: This driver is deprecated. Its replacement is the |
761 | Mass Storage Gadget. | |
762 | ||
1da177e4 LT |
763 | config USB_FILE_STORAGE_TEST |
764 | bool "File-backed Storage Gadget testing version" | |
765 | depends on USB_FILE_STORAGE | |
766 | default n | |
767 | help | |
768 | Say "y" to generate the larger testing version of the | |
769 | File-backed Storage Gadget, useful for probing the | |
770 | behavior of USB Mass Storage hosts. Not needed for | |
771 | normal operation. | |
772 | ||
d23b0f08 MN |
773 | config USB_MASS_STORAGE |
774 | tristate "Mass Storage Gadget" | |
775 | depends on BLOCK | |
776 | help | |
777 | The Mass Storage Gadget acts as a USB Mass Storage disk drive. | |
778 | As its storage repository it can use a regular file or a block | |
779 | device (in much the same way as the "loop" device driver), | |
780 | specified as a module parameter or sysfs option. | |
781 | ||
664a51a8 AS |
782 | This driver is an updated replacement for the deprecated |
783 | File-backed Storage Gadget (g_file_storage). | |
d23b0f08 MN |
784 | |
785 | Say "y" to link the driver statically, or "m" to build | |
664a51a8 | 786 | a dynamically linked module called "g_mass_storage". |
d23b0f08 | 787 | |
1da177e4 | 788 | config USB_G_SERIAL |
3086775a | 789 | tristate "Serial Gadget (with CDC ACM and CDC OBEX support)" |
1da177e4 LT |
790 | help |
791 | The Serial Gadget talks to the Linux-USB generic serial driver. | |
792 | This driver supports a CDC-ACM module option, which can be used | |
793 | to interoperate with MS-Windows hosts or with the Linux-USB | |
794 | "cdc-acm" driver. | |
795 | ||
3086775a FB |
796 | This driver also supports a CDC-OBEX option. You will need a |
797 | user space OBEX server talking to /dev/ttyGS*, since the kernel | |
798 | itself doesn't implement the OBEX protocol. | |
799 | ||
1da177e4 LT |
800 | Say "y" to link the driver statically, or "m" to build a |
801 | dynamically linked module called "g_serial". | |
802 | ||
803 | For more information, see Documentation/usb/gadget_serial.txt | |
804 | which includes instructions and a "driver info file" needed to | |
3086775a | 805 | make MS-Windows work with CDC ACM. |
1da177e4 | 806 | |
f2ebf92c BW |
807 | config USB_MIDI_GADGET |
808 | tristate "MIDI Gadget (EXPERIMENTAL)" | |
809 | depends on SND && EXPERIMENTAL | |
810 | select SND_RAWMIDI | |
811 | help | |
812 | The MIDI Gadget acts as a USB Audio device, with one MIDI | |
813 | input and one MIDI output. These MIDI jacks appear as | |
814 | a sound "card" in the ALSA sound system. Other MIDI | |
815 | connections can then be made on the gadget system, using | |
816 | ALSA's aconnect utility etc. | |
817 | ||
818 | Say "y" to link the driver statically, or "m" to build a | |
819 | dynamically linked module called "g_midi". | |
820 | ||
25a010c8 CN |
821 | config USB_G_PRINTER |
822 | tristate "Printer Gadget" | |
823 | help | |
824 | The Printer Gadget channels data between the USB host and a | |
825 | userspace program driving the print engine. The user space | |
826 | program reads and writes the device file /dev/g_printer to | |
827 | receive or send printer data. It can use ioctl calls to | |
828 | the device file to get or set printer status. | |
829 | ||
830 | Say "y" to link the driver statically, or "m" to build a | |
831 | dynamically linked module called "g_printer". | |
832 | ||
833 | For more information, see Documentation/usb/gadget_printer.txt | |
834 | which includes sample code for accessing the device file. | |
1da177e4 | 835 | |
19e20680 DB |
836 | config USB_CDC_COMPOSITE |
837 | tristate "CDC Composite Device (Ethernet and ACM)" | |
4ddd9ec1 | 838 | depends on NET |
19e20680 DB |
839 | help |
840 | This driver provides two functions in one configuration: | |
841 | a CDC Ethernet (ECM) link, and a CDC ACM (serial port) link. | |
842 | ||
843 | This driver requires four bulk and two interrupt endpoints, | |
844 | plus the ability to handle altsettings. Not all peripheral | |
845 | controllers are that capable. | |
846 | ||
847 | Say "y" to link the driver statically, or "m" to build a | |
848 | dynamically linked module. | |
849 | ||
f358f5b4 FB |
850 | config USB_G_NOKIA |
851 | tristate "Nokia composite gadget" | |
852 | depends on PHONET | |
853 | help | |
854 | The Nokia composite gadget provides support for acm, obex | |
855 | and phonet in only one composite gadget driver. | |
856 | ||
857 | It's only really useful for N900 hardware. If you're building | |
858 | a kernel for N900, say Y or M here. If unsure, say N. | |
859 | ||
fa3ae0c1 KS |
860 | config USB_G_ACM_MS |
861 | tristate "CDC Composite Device (ACM and mass storage)" | |
862 | depends on BLOCK | |
863 | help | |
864 | This driver provides two functions in one configuration: | |
865 | a mass storage, and a CDC ACM (serial port) link. | |
866 | ||
867 | Say "y" to link the driver statically, or "m" to build a | |
868 | dynamically linked module called "g_acm_ms". | |
869 | ||
f176a5d8 MN |
870 | config USB_G_MULTI |
871 | tristate "Multifunction Composite Gadget (EXPERIMENTAL)" | |
5791e103 | 872 | depends on BLOCK && NET |
279cc49a | 873 | select USB_G_MULTI_CDC if !USB_G_MULTI_RNDIS |
f176a5d8 MN |
874 | help |
875 | The Multifunction Composite Gadget provides Ethernet (RNDIS | |
876 | and/or CDC Ethernet), mass storage and ACM serial link | |
877 | interfaces. | |
878 | ||
5791e103 | 879 | You will be asked to choose which of the two configurations is |
f176a5d8 | 880 | to be available in the gadget. At least one configuration must |
5791e103 | 881 | be chosen to make the gadget usable. Selecting more than one |
f176a5d8 | 882 | configuration will prevent Windows from automatically detecting |
5791e103 | 883 | the gadget as a composite gadget, so an INF file will be needed to |
f176a5d8 MN |
884 | use the gadget. |
885 | ||
886 | Say "y" to link the driver statically, or "m" to build a | |
887 | dynamically linked module called "g_multi". | |
888 | ||
889 | config USB_G_MULTI_RNDIS | |
890 | bool "RNDIS + CDC Serial + Storage configuration" | |
891 | depends on USB_G_MULTI | |
892 | default y | |
893 | help | |
894 | This option enables a configuration with RNDIS, CDC Serial and | |
895 | Mass Storage functions available in the Multifunction Composite | |
5791e103 RD |
896 | Gadget. This is the configuration dedicated for Windows since RNDIS |
897 | is Microsoft's protocol. | |
f176a5d8 MN |
898 | |
899 | If unsure, say "y". | |
900 | ||
901 | config USB_G_MULTI_CDC | |
902 | bool "CDC Ethernet + CDC Serial + Storage configuration" | |
903 | depends on USB_G_MULTI | |
904 | default n | |
905 | help | |
906 | This option enables a configuration with CDC Ethernet (ECM), CDC | |
907 | Serial and Mass Storage functions available in the Multifunction | |
5791e103 | 908 | Composite Gadget. |
f176a5d8 MN |
909 | |
910 | If unsure, say "y". | |
911 | ||
71adf118 FC |
912 | config USB_G_HID |
913 | tristate "HID Gadget" | |
914 | help | |
915 | The HID gadget driver provides generic emulation of USB | |
916 | Human Interface Devices (HID). | |
917 | ||
918 | For more information, see Documentation/usb/gadget_hid.txt which | |
919 | includes sample code for accessing the device files. | |
920 | ||
921 | Say "y" to link the driver statically, or "m" to build a | |
922 | dynamically linked module called "g_hid". | |
f176a5d8 | 923 | |
f6c826a9 | 924 | config USB_G_DBGP |
925 | tristate "EHCI Debug Device Gadget" | |
926 | help | |
927 | This gadget emulates an EHCI Debug device. This is useful when you want | |
928 | to interact with an EHCI Debug Port. | |
929 | ||
930 | Say "y" to link the driver statically, or "m" to build a | |
931 | dynamically linked module called "g_dbgp". | |
932 | ||
933 | if USB_G_DBGP | |
934 | choice | |
935 | prompt "EHCI Debug Device mode" | |
936 | default USB_G_DBGP_SERIAL | |
937 | ||
938 | config USB_G_DBGP_PRINTK | |
939 | depends on USB_G_DBGP | |
940 | bool "printk" | |
941 | help | |
942 | Directly printk() received data. No interaction. | |
943 | ||
944 | config USB_G_DBGP_SERIAL | |
945 | depends on USB_G_DBGP | |
946 | bool "serial" | |
947 | help | |
948 | Userland can interact using /dev/ttyGSxxx. | |
949 | endchoice | |
950 | endif | |
951 | ||
1da177e4 LT |
952 | # put drivers that need isochronous transfer support (for audio |
953 | # or video class gadget drivers), or specific hardware, here. | |
a9914127 LP |
954 | config USB_G_WEBCAM |
955 | tristate "USB Webcam Gadget" | |
24337c13 | 956 | depends on VIDEO_DEV |
a9914127 LP |
957 | help |
958 | The Webcam Gadget acts as a composite USB Audio and Video Class | |
959 | device. It provides a userspace API to process UVC control requests | |
960 | and stream video data to the host. | |
1da177e4 | 961 | |
a9914127 LP |
962 | Say "y" to link the driver statically, or "m" to build a |
963 | dynamically linked module called "g_webcam". | |
1da177e4 LT |
964 | |
965 | endchoice | |
966 | ||
b75be4ab | 967 | endif # USB_GADGET |