2 # USB Gadget support on a system involves
3 # (a) a peripheral controller, and
4 # (b) the gadget driver using it.
6 # NOTE: Gadget support ** DOES NOT ** depend on host-side CONFIG_USB !!
8 # - Host systems (like PCs) need CONFIG_USB (with "A" jacks).
9 # - Peripherals (like PDAs) need CONFIG_USB_GADGET (with "B" jacks).
10 # - Some systems have both kinds of controllers.
12 # With help from a special transceiver and a "Mini-AB" jack, systems with
13 # both kinds of controller can also support "USB On-the-Go" (CONFIG_USB_OTG).
17 tristate "USB Gadget Support"
19 USB is a master/slave protocol, organized with one master
20 host (such as a PC) controlling up to 127 peripheral devices.
21 The USB hardware is asymmetric, which makes it easier to set up:
22 you can't connect a "to-the-host" connector to a peripheral.
24 Linux can run in the host, or in the peripheral. In both cases
25 you need a low level bus controller driver, and some software
26 talking to it. Peripheral controllers are often discrete silicon,
27 or are integrated with the CPU in a microcontroller. The more
28 familiar host side controllers have names like "EHCI", "OHCI",
29 or "UHCI", and are usually integrated into southbridges on PC
32 Enable this configuration option if you want to run Linux inside
33 a USB peripheral device. Configure one hardware driver for your
34 peripheral/device side bus controller, and a "gadget driver" for
35 your peripheral protocol. (If you use modular gadget drivers,
36 you may configure more than one.)
38 If in doubt, say "N" and don't enable these drivers; most people
39 don't have this kind of hardware (except maybe inside Linux PDAs).
41 For more information, see <http://www.linux-usb.org/gadget> and
42 the kernel DocBook documentation for this API.
46 config USB_GADGET_DEBUG
47 boolean "Debugging messages"
48 depends on USB_GADGET && DEBUG_KERNEL && EXPERIMENTAL
50 Many controller and gadget drivers will print some debugging
51 messages if you use this option to ask for those messages.
53 Avoid enabling these messages, even if you're actively
54 debugging such a driver. Many drivers will emit so many
55 messages that the driver timings are affected, which will
56 either create new failure modes or remove the one you're
57 trying to track down. Never enable these messages for a
60 config USB_GADGET_DEBUG_FILES
61 boolean "Debugging information files"
62 depends on USB_GADGET && PROC_FS
64 Some of the drivers in the "gadget" framework can expose
65 debugging information in files such as /proc/driver/udc
66 (for a peripheral controller). The information in these
67 files may help when you're troubleshooting or bringing up a
68 driver on a new board. Enable these files by choosing "Y"
69 here. If in doubt, or to conserve kernel memory, say "N".
71 config USB_GADGET_DEBUG_FS
72 boolean "Debugging information files in debugfs"
73 depends on USB_GADGET && DEBUG_FS
75 Some of the drivers in the "gadget" framework can expose
76 debugging information in files under /sys/kernel/debug/.
77 The information in these files may help when you're
78 troubleshooting or bringing up a driver on a new board.
79 Enable these files by choosing "Y" here. If in doubt, or
80 to conserve kernel memory, say "N".
82 config USB_GADGET_SELECTED
86 # USB Peripheral Controller Support
89 prompt "USB Peripheral Controller"
92 A USB device uses a controller to talk to its host.
93 Systems should have only one such upstream link.
94 Many controller drivers are platform-specific; these
95 often need board-specific hooks.
97 config USB_GADGET_AMD5536UDC
100 select USB_GADGET_DUALSPEED
102 The AMD5536 UDC is part of the AMD Geode CS5536, an x86 southbridge.
103 It is a USB Highspeed DMA capable USB device controller. Beside ep0
104 it provides 4 IN and 4 OUT endpoints (bulk or interrupt type).
105 The UDC port supports OTG operation, and may be used as a host port
106 if it's not being used to implement peripheral or OTG roles.
108 Say "y" to link the driver statically, or "m" to build a
109 dynamically linked module called "amd5536udc" and force all
110 gadget drivers to also be dynamically linked.
112 config USB_AMD5536UDC
114 depends on USB_GADGET_AMD5536UDC
116 select USB_GADGET_SELECTED
118 config USB_GADGET_ATMEL_USBA
120 select USB_GADGET_DUALSPEED
123 USBA is the integrated high-speed USB Device controller on
124 the AT32AP700x processors from Atmel.
126 config USB_ATMEL_USBA
128 depends on USB_GADGET_ATMEL_USBA
130 select USB_GADGET_SELECTED
132 config USB_GADGET_FSL_USB2
133 boolean "Freescale Highspeed USB DR Peripheral Controller"
134 <<<<<<< HEAD:drivers/usb/gadget/Kconfig
135 depends on MPC834x || PPC_MPC831x
138 >>>>>>> 264e3e889d86e552b4191d69bb60f4f3b383135a:drivers/usb/gadget/Kconfig
139 select USB_GADGET_DUALSPEED
141 Some of Freescale PowerPC processors have a High Speed
142 Dual-Role(DR) USB controller, which supports device mode.
144 The number of programmable endpoints is different through
147 Say "y" to link the driver statically, or "m" to build a
148 dynamically linked module called "fsl_usb2_udc" and force
149 all gadget drivers to also be dynamically linked.
153 depends on USB_GADGET_FSL_USB2
155 select USB_GADGET_SELECTED
157 config USB_GADGET_NET2280
158 boolean "NetChip 228x"
160 select USB_GADGET_DUALSPEED
162 NetChip 2280 / 2282 is a PCI based USB peripheral controller which
163 supports both full and high speed USB 2.0 data transfers.
165 It has six configurable endpoints, as well as endpoint zero
166 (for control transfers) and several endpoints with dedicated
169 Say "y" to link the driver statically, or "m" to build a
170 dynamically linked module called "net2280" and force all
171 gadget drivers to also be dynamically linked.
175 depends on USB_GADGET_NET2280
177 select USB_GADGET_SELECTED
179 config USB_GADGET_PXA2XX
180 boolean "PXA 25x or IXP 4xx"
181 depends on (ARCH_PXA && PXA25x) || ARCH_IXP4XX
183 Intel's PXA 25x series XScale ARM-5TE processors include
184 an integrated full speed USB 1.1 device controller. The
185 controller in the IXP 4xx series is register-compatible.
187 It has fifteen fixed-function endpoints, as well as endpoint
188 zero (for control transfers).
190 Say "y" to link the driver statically, or "m" to build a
191 dynamically linked module called "pxa2xx_udc" and force all
192 gadget drivers to also be dynamically linked.
196 depends on USB_GADGET_PXA2XX
198 select USB_GADGET_SELECTED
200 # if there's only one gadget driver, using only two bulk endpoints,
201 # don't waste memory for the other endpoints
202 config USB_PXA2XX_SMALL
203 depends on USB_GADGET_PXA2XX
205 default n if USB_ETH_RNDIS
206 default y if USB_ZERO
208 default y if USB_G_SERIAL
210 config USB_GADGET_M66592
211 boolean "Renesas M66592 USB Peripheral Controller"
212 select USB_GADGET_DUALSPEED
214 M66592 is a discrete USB peripheral controller chip that
215 supports both full and high speed USB 2.0 data transfers.
216 It has seven configurable endpoints, and endpoint zero.
218 Say "y" to link the driver statically, or "m" to build a
219 dynamically linked module called "m66592_udc" and force all
220 gadget drivers to also be dynamically linked.
224 depends on USB_GADGET_M66592
226 select USB_GADGET_SELECTED
228 config SUPERH_BUILT_IN_M66592
229 boolean "Enable SuperH built-in USB like the M66592"
230 depends on USB_GADGET_M66592 && CPU_SUBTYPE_SH7722
232 SH7722 has USB like the M66592.
234 The transfer rate is very slow when use "Ethernet Gadget".
235 However, this problem is improved if change a value of
238 config USB_GADGET_GOKU
239 boolean "Toshiba TC86C001 'Goku-S'"
242 The Toshiba TC86C001 is a PCI device which includes controllers
243 for full speed USB devices, IDE, I2C, SIO, plus a USB host (OHCI).
245 The device controller has three configurable (bulk or interrupt)
246 endpoints, plus endpoint zero (for control transfers).
248 Say "y" to link the driver statically, or "m" to build a
249 dynamically linked module called "goku_udc" and to force all
250 gadget drivers to also be dynamically linked.
254 depends on USB_GADGET_GOKU
256 select USB_GADGET_SELECTED
259 config USB_GADGET_LH7A40X
261 depends on ARCH_LH7A40X
263 This driver provides USB Device Controller driver for LH7A40x
267 depends on USB_GADGET_LH7A40X
269 select USB_GADGET_SELECTED
271 config USB_GADGET_OMAP
272 boolean "OMAP USB Device Controller"
274 select ISP1301_OMAP if MACH_OMAP_H2 || MACH_OMAP_H3
276 Many Texas Instruments OMAP processors have flexible full
277 speed USB device controllers, with support for up to 30
278 endpoints (plus endpoint zero). This driver supports the
279 controller in the OMAP 1611, and should work with controllers
280 in other OMAP processors too, given minor tweaks.
282 Say "y" to link the driver statically, or "m" to build a
283 dynamically linked module called "omap_udc" and force all
284 gadget drivers to also be dynamically linked.
288 depends on USB_GADGET_OMAP
290 select USB_GADGET_SELECTED
293 boolean "OTG Support"
294 depends on USB_GADGET_OMAP && ARCH_OMAP_OTG && USB_OHCI_HCD
296 The most notable feature of USB OTG is support for a
297 "Dual-Role" device, which can act as either a device
298 or a host. The initial role choice can be changed
299 later, when two dual-role devices talk to each other.
301 Select this only if your OMAP board has a Mini-AB connector.
303 config USB_GADGET_S3C2410
304 boolean "S3C2410 USB Device Controller"
305 depends on ARCH_S3C2410
307 Samsung's S3C2410 is an ARM-4 processor with an integrated
308 full speed USB 1.1 device controller. It has 4 configurable
309 endpoints, as well as endpoint zero (for control transfers).
311 This driver has been tested on the S3C2410, S3C2412, and
316 depends on USB_GADGET_S3C2410
318 select USB_GADGET_SELECTED
320 config USB_S3C2410_DEBUG
321 boolean "S3C2410 udc debug messages"
322 depends on USB_GADGET_S3C2410
324 config USB_GADGET_AT91
325 boolean "AT91 USB Device Port"
326 depends on ARCH_AT91 && !ARCH_AT91SAM9RL && !ARCH_AT91CAP9
327 select USB_GADGET_SELECTED
329 Many Atmel AT91 processors (such as the AT91RM2000) have a
330 full speed USB Device Port with support for five configurable
331 endpoints (plus endpoint zero).
333 Say "y" to link the driver statically, or "m" to build a
334 dynamically linked module called "at91_udc" and force all
335 gadget drivers to also be dynamically linked.
339 depends on USB_GADGET_AT91
342 config USB_GADGET_DUMMY_HCD
343 boolean "Dummy HCD (DEVELOPMENT)"
344 depends on (USB=y || (USB=m && USB_GADGET=m)) && EXPERIMENTAL
345 select USB_GADGET_DUALSPEED
347 This host controller driver emulates USB, looping all data transfer
348 requests back to a USB "gadget driver" in the same host. The host
349 side is the master; the gadget side is the slave. Gadget drivers
350 can be high, full, or low speed; and they have access to endpoints
351 like those from NET2280, PXA2xx, or SA1100 hardware.
353 This may help in some stages of creating a driver to embed in a
354 Linux device, since it lets you debug several parts of the gadget
355 driver without its hardware or drivers being involved.
357 Since such a gadget side driver needs to interoperate with a host
358 side Linux-USB device driver, this may help to debug both sides
359 of a USB protocol stack.
361 Say "y" to link the driver statically, or "m" to build a
362 dynamically linked module called "dummy_hcd" and force all
363 gadget drivers to also be dynamically linked.
367 depends on USB_GADGET_DUMMY_HCD
369 select USB_GADGET_SELECTED
371 # NOTE: Please keep dummy_hcd LAST so that "real hardware" appears
372 # first and will be selected by default.
376 config USB_GADGET_DUALSPEED
378 depends on USB_GADGET
381 Means that gadget drivers should include extra descriptors
382 and code to handle dual-speed controllers.
388 tristate "USB Gadget Drivers"
389 depends on USB_GADGET && USB_GADGET_SELECTED
392 A Linux "Gadget Driver" talks to the USB Peripheral Controller
393 driver through the abstract "gadget" API. Some other operating
394 systems call these "client" drivers, of which "class drivers"
395 are a subset (implementing a USB device class specification).
396 A gadget driver implements one or more USB functions using
397 the peripheral hardware.
399 Gadget drivers are hardware-neutral, or "platform independent",
400 except that they sometimes must understand quirks or limitations
401 of the particular controllers they work with. For example, when
402 a controller doesn't support alternate configurations or provide
403 enough of the right types of endpoints, the gadget driver might
404 not be able work with that controller, or might need to implement
405 a less common variant of a device class protocol.
407 # this first set of drivers all depend on bulk-capable hardware.
410 tristate "Gadget Zero (DEVELOPMENT)"
411 depends on EXPERIMENTAL
413 Gadget Zero is a two-configuration device. It either sinks and
414 sources bulk data; or it loops back a configurable number of
415 transfers. It also implements control requests, for "chapter 9"
416 conformance. The driver needs only two bulk-capable endpoints, so
417 it can work on top of most device-side usb controllers. It's
418 useful for testing, and is also a working example showing how
419 USB "gadget drivers" can be written.
421 Make this be the first driver you try using on top of any new
422 USB peripheral controller driver. Then you can use host-side
423 test software, like the "usbtest" driver, to put your hardware
424 and its driver through a basic set of functional tests.
426 Gadget Zero also works with the host-side "usb-skeleton" driver,
427 and with many kinds of host-side test software. You may need
428 to tweak product and vendor IDs before host software knows about
429 this device, and arrange to select an appropriate configuration.
431 Say "y" to link the driver statically, or "m" to build a
432 dynamically linked module called "g_zero".
434 config USB_ZERO_HNPTEST
435 boolean "HNP Test Device"
436 depends on USB_ZERO && USB_OTG
438 You can configure this device to enumerate using the device
439 identifiers of the USB-OTG test device. That means that when
440 this gadget connects to another OTG device, with this one using
441 the "B-Peripheral" role, that device will use HNP to let this
442 one serve as the USB host instead (in the "B-Host" role).
445 tristate "Ethernet Gadget (with CDC Ethernet support)"
448 This driver implements Ethernet style communication, in either
451 - The "Communication Device Class" (CDC) Ethernet Control Model.
452 That protocol is often avoided with pure Ethernet adapters, in
453 favor of simpler vendor-specific hardware, but is widely
454 supported by firmware for smart network devices.
456 - On hardware can't implement that protocol, a simple CDC subset
457 is used, placing fewer demands on USB.
459 RNDIS support is a third option, more demanding than that subset.
461 Within the USB device, this gadget driver exposes a network device
462 "usbX", where X depends on what other networking devices you have.
463 Treat it like a two-node Ethernet link: host, and gadget.
465 The Linux-USB host-side "usbnet" driver interoperates with this
466 driver, so that deep I/O queues can be supported. On 2.4 kernels,
467 use "CDCEther" instead, if you're using the CDC option. That CDC
468 mode should also interoperate with standard CDC Ethernet class
469 drivers on other host operating systems.
471 Say "y" to link the driver statically, or "m" to build a
472 dynamically linked module called "g_ether".
475 bool "RNDIS support (EXPERIMENTAL)"
476 depends on USB_ETH && EXPERIMENTAL
479 Microsoft Windows XP bundles the "Remote NDIS" (RNDIS) protocol,
480 and Microsoft provides redistributable binary RNDIS drivers for
481 older versions of Windows.
483 If you say "y" here, the Ethernet gadget driver will try to provide
484 a second device configuration, supporting RNDIS to talk to such
487 To make MS-Windows work with this, use Documentation/usb/linux.inf
488 as the "driver info file". For versions of MS-Windows older than
489 XP, you'll need to download drivers from Microsoft's website; a URL
490 is given in comments found in that info file.
493 tristate "Gadget Filesystem (EXPERIMENTAL)"
494 depends on EXPERIMENTAL
496 This driver provides a filesystem based API that lets user mode
497 programs implement a single-configuration USB device, including
498 endpoint I/O and control requests that don't relate to enumeration.
499 All endpoints, transfer speeds, and transfer types supported by
500 the hardware are available, through read() and write() calls.
502 Say "y" to link the driver statically, or "m" to build a
503 dynamically linked module called "gadgetfs".
505 config USB_FILE_STORAGE
506 tristate "File-backed Storage Gadget"
509 The File-backed Storage Gadget acts as a USB Mass Storage
510 disk drive. As its storage repository it can use a regular
511 file or a block device (in much the same way as the "loop"
512 device driver), specified as a module parameter.
514 Say "y" to link the driver statically, or "m" to build a
515 dynamically linked module called "g_file_storage".
517 config USB_FILE_STORAGE_TEST
518 bool "File-backed Storage Gadget testing version"
519 depends on USB_FILE_STORAGE
522 Say "y" to generate the larger testing version of the
523 File-backed Storage Gadget, useful for probing the
524 behavior of USB Mass Storage hosts. Not needed for
528 tristate "Serial Gadget (with CDC ACM support)"
530 The Serial Gadget talks to the Linux-USB generic serial driver.
531 This driver supports a CDC-ACM module option, which can be used
532 to interoperate with MS-Windows hosts or with the Linux-USB
535 Say "y" to link the driver statically, or "m" to build a
536 dynamically linked module called "g_serial".
538 For more information, see Documentation/usb/gadget_serial.txt
539 which includes instructions and a "driver info file" needed to
540 make MS-Windows work with this driver.
542 config USB_MIDI_GADGET
543 tristate "MIDI Gadget (EXPERIMENTAL)"
544 depends on SND && EXPERIMENTAL
547 The MIDI Gadget acts as a USB Audio device, with one MIDI
548 input and one MIDI output. These MIDI jacks appear as
549 a sound "card" in the ALSA sound system. Other MIDI
550 connections can then be made on the gadget system, using
551 ALSA's aconnect utility etc.
553 Say "y" to link the driver statically, or "m" to build a
554 dynamically linked module called "g_midi".
557 tristate "Printer Gadget"
559 The Printer Gadget channels data between the USB host and a
560 userspace program driving the print engine. The user space
561 program reads and writes the device file /dev/g_printer to
562 receive or send printer data. It can use ioctl calls to
563 the device file to get or set printer status.
565 Say "y" to link the driver statically, or "m" to build a
566 dynamically linked module called "g_printer".
568 For more information, see Documentation/usb/gadget_printer.txt
569 which includes sample code for accessing the device file.
571 # put drivers that need isochronous transfer support (for audio
572 # or video class gadget drivers), or specific hardware, here.