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 (DEVELOPMENT)"
48 depends on DEBUG_KERNEL
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 (DEVELOPMENT)"
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 (DEVELOPMENT)"
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_VBUS_DRAW
83 int "Maximum VBUS Power usage (2-500 mA)"
87 Some devices need to draw power from USB when they are
88 configured, perhaps to operate circuitry or to recharge
89 batteries. This is in addition to any local power supply,
90 such as an AC adapter or batteries.
92 Enter the maximum power your device draws through USB, in
93 milliAmperes. The permitted range of values is 2 - 500 mA;
94 0 mA would be legal, but can make some hosts misbehave.
96 This value will be used except for system-specific gadget
97 drivers that have more specific information.
99 config USB_GADGET_SELECTED
103 # USB Peripheral Controller Support
105 # The order here is alphabetical, except that integrated controllers go
106 # before discrete ones so they will be the initial/default value:
107 # - integrated/SOC controllers first
108 # - licensed IP used in both SOC and discrete versions
109 # - discrete ones (including all PCI-only controllers)
110 # - debug/dummy gadget+hcd is last.
113 prompt "USB Peripheral Controller"
114 depends on USB_GADGET
116 A USB device uses a controller to talk to its host.
117 Systems should have only one such upstream link.
118 Many controller drivers are platform-specific; these
119 often need board-specific hooks.
122 # Integrated controllers
125 config USB_GADGET_AT91
126 boolean "Atmel AT91 USB Device Port"
127 depends on ARCH_AT91 && !ARCH_AT91SAM9RL && !ARCH_AT91CAP9 && !ARCH_AT91SAM9G45
128 select USB_GADGET_SELECTED
130 Many Atmel AT91 processors (such as the AT91RM2000) have a
131 full speed USB Device Port with support for five configurable
132 endpoints (plus endpoint zero).
134 Say "y" to link the driver statically, or "m" to build a
135 dynamically linked module called "at91_udc" and force all
136 gadget drivers to also be dynamically linked.
140 depends on USB_GADGET_AT91
143 config USB_GADGET_ATMEL_USBA
145 select USB_GADGET_DUALSPEED
146 depends on AVR32 || ARCH_AT91CAP9 || ARCH_AT91SAM9RL || ARCH_AT91SAM9G45
148 USBA is the integrated high-speed USB Device controller on
149 the AT32AP700x, some AT91SAM9 and AT91CAP9 processors from Atmel.
151 config USB_ATMEL_USBA
153 depends on USB_GADGET_ATMEL_USBA
155 select USB_GADGET_SELECTED
157 config USB_GADGET_FSL_USB2
158 boolean "Freescale Highspeed USB DR Peripheral Controller"
159 depends on FSL_SOC || ARCH_MXC
160 select USB_GADGET_DUALSPEED
161 select USB_FSL_MPH_DR_OF if OF
163 Some of Freescale PowerPC processors have a High Speed
164 Dual-Role(DR) USB controller, which supports device mode.
166 The number of programmable endpoints is different through
169 Say "y" to link the driver statically, or "m" to build a
170 dynamically linked module called "fsl_usb2_udc" and force
171 all gadget drivers to also be dynamically linked.
175 depends on USB_GADGET_FSL_USB2
177 select USB_GADGET_SELECTED
179 config USB_GADGET_FUSB300
180 boolean "Faraday FUSB300 USB Peripheral Controller"
181 select USB_GADGET_DUALSPEED
183 Faraday usb device controller FUSB300 driver
187 depends on USB_GADGET_FUSB300
189 select USB_GADGET_SELECTED
191 config USB_GADGET_OMAP
192 boolean "OMAP USB Device Controller"
194 select ISP1301_OMAP if MACH_OMAP_H2 || MACH_OMAP_H3 || MACH_OMAP_H4_OTG
195 select USB_OTG_UTILS if ARCH_OMAP
197 Many Texas Instruments OMAP processors have flexible full
198 speed USB device controllers, with support for up to 30
199 endpoints (plus endpoint zero). This driver supports the
200 controller in the OMAP 1611, and should work with controllers
201 in other OMAP processors too, given minor tweaks.
203 Say "y" to link the driver statically, or "m" to build a
204 dynamically linked module called "omap_udc" and force all
205 gadget drivers to also be dynamically linked.
209 depends on USB_GADGET_OMAP
211 select USB_GADGET_SELECTED
213 config USB_GADGET_PXA25X
214 boolean "PXA 25x or IXP 4xx"
215 depends on (ARCH_PXA && PXA25x) || ARCH_IXP4XX
218 Intel's PXA 25x series XScale ARM-5TE processors include
219 an integrated full speed USB 1.1 device controller. The
220 controller in the IXP 4xx series is register-compatible.
222 It has fifteen fixed-function endpoints, as well as endpoint
223 zero (for control transfers).
225 Say "y" to link the driver statically, or "m" to build a
226 dynamically linked module called "pxa25x_udc" and force all
227 gadget drivers to also be dynamically linked.
231 depends on USB_GADGET_PXA25X
233 select USB_GADGET_SELECTED
235 # if there's only one gadget driver, using only two bulk endpoints,
236 # don't waste memory for the other endpoints
237 config USB_PXA25X_SMALL
238 depends on USB_GADGET_PXA25X
240 default n if USB_ETH_RNDIS
241 default y if USB_ZERO
243 default y if USB_G_SERIAL
245 config USB_GADGET_R8A66597
246 boolean "Renesas R8A66597 USB Peripheral Controller"
247 select USB_GADGET_DUALSPEED
249 R8A66597 is a discrete USB host and peripheral controller chip that
250 supports both full and high speed USB 2.0 data transfers.
251 It has nine configurable endpoints, and endpoint zero.
253 Say "y" to link the driver statically, or "m" to build a
254 dynamically linked module called "r8a66597_udc" and force all
255 gadget drivers to also be dynamically linked.
259 depends on USB_GADGET_R8A66597
261 select USB_GADGET_SELECTED
263 config USB_GADGET_RENESAS_USBHS
264 boolean "Renesas USBHS"
265 depends on USB_RENESAS_USBHS
266 select USB_GADGET_DUALSPEED
268 Renesas USBHS is a discrete USB host and peripheral controller
269 chip that supports both full and high speed USB 2.0 data transfers.
270 platform is able to configure endpoint (pipe) style
272 Say "y" to enable the gadget specific portion of the USBHS driver.
275 config USB_RENESAS_USBHS_UDC
277 depends on USB_GADGET_RENESAS_USBHS
279 select USB_GADGET_SELECTED
281 config USB_GADGET_PXA27X
283 depends on ARCH_PXA && (PXA27x || PXA3xx)
286 Intel's PXA 27x series XScale ARM v5TE processors include
287 an integrated full speed USB 1.1 device controller.
289 It has up to 23 endpoints, as well as endpoint zero (for
292 Say "y" to link the driver statically, or "m" to build a
293 dynamically linked module called "pxa27x_udc" and force all
294 gadget drivers to also be dynamically linked.
298 depends on USB_GADGET_PXA27X
300 select USB_GADGET_SELECTED
302 config USB_GADGET_S3C_HSOTG
303 boolean "S3C HS/OtG USB Device controller"
304 depends on S3C_DEV_USB_HSOTG
305 select USB_GADGET_S3C_HSOTG_PIO
306 select USB_GADGET_DUALSPEED
308 The Samsung S3C64XX USB2.0 high-speed gadget controller
309 integrated into the S3C64XX series SoC.
313 depends on USB_GADGET_S3C_HSOTG
315 select USB_GADGET_SELECTED
317 config USB_GADGET_IMX
318 boolean "Freescale IMX USB Peripheral Controller"
321 Freescale's IMX series include an integrated full speed
322 USB 1.1 device controller. The controller in the IMX series
323 is register-compatible.
325 It has Six fixed-function endpoints, as well as endpoint
326 zero (for control transfers).
328 Say "y" to link the driver statically, or "m" to build a
329 dynamically linked module called "imx_udc" and force all
330 gadget drivers to also be dynamically linked.
334 depends on USB_GADGET_IMX
336 select USB_GADGET_SELECTED
338 config USB_GADGET_S3C2410
339 boolean "S3C2410 USB Device Controller"
340 depends on ARCH_S3C2410
342 Samsung's S3C2410 is an ARM-4 processor with an integrated
343 full speed USB 1.1 device controller. It has 4 configurable
344 endpoints, as well as endpoint zero (for control transfers).
346 This driver has been tested on the S3C2410, S3C2412, and
351 depends on USB_GADGET_S3C2410
353 select USB_GADGET_SELECTED
355 config USB_S3C2410_DEBUG
356 boolean "S3C2410 udc debug messages"
357 depends on USB_GADGET_S3C2410
359 config USB_GADGET_S3C_HSUDC
360 boolean "S3C2416, S3C2443 and S3C2450 USB Device Controller"
361 depends on ARCH_S3C2410
362 select USB_GADGET_DUALSPEED
364 Samsung's S3C2416, S3C2443 and S3C2450 is an ARM9 based SoC
365 integrated with dual speed USB 2.0 device controller. It has
366 8 endpoints, as well as endpoint zero.
368 This driver has been tested on S3C2416 and S3C2450 processors.
372 depends on USB_GADGET_S3C_HSUDC
374 select USB_GADGET_SELECTED
376 config USB_GADGET_PXA_U2O
377 boolean "PXA9xx Processor USB2.0 controller"
378 select USB_GADGET_DUALSPEED
380 PXA9xx Processor series include a high speed USB2.0 device
381 controller, which support high speed and full speed USB peripheral.
385 depends on USB_GADGET_PXA_U2O
387 select USB_GADGET_SELECTED
390 # Controllers available in both integrated and discrete versions
393 # musb builds in ../musb along with host support
394 config USB_GADGET_MUSB_HDRC
395 boolean "Inventra HDRC USB Peripheral (TI, ADI, ...)"
396 depends on USB_MUSB_HDRC && (USB_MUSB_PERIPHERAL || USB_MUSB_OTG)
397 select USB_GADGET_DUALSPEED
398 select USB_GADGET_SELECTED
400 This OTG-capable silicon IP is used in dual designs including
401 the TI DaVinci, OMAP 243x, OMAP 343x, TUSB 6010, and ADI Blackfin
403 config USB_GADGET_M66592
404 boolean "Renesas M66592 USB Peripheral Controller"
405 select USB_GADGET_DUALSPEED
407 M66592 is a discrete USB peripheral controller chip that
408 supports both full and high speed USB 2.0 data transfers.
409 It has seven configurable endpoints, and endpoint zero.
411 Say "y" to link the driver statically, or "m" to build a
412 dynamically linked module called "m66592_udc" and force all
413 gadget drivers to also be dynamically linked.
417 depends on USB_GADGET_M66592
419 select USB_GADGET_SELECTED
422 # Controllers available only in discrete form (and all PCI controllers)
425 config USB_GADGET_AMD5536UDC
426 boolean "AMD5536 UDC"
428 select USB_GADGET_DUALSPEED
430 The AMD5536 UDC is part of the AMD Geode CS5536, an x86 southbridge.
431 It is a USB Highspeed DMA capable USB device controller. Beside ep0
432 it provides 4 IN and 4 OUT endpoints (bulk or interrupt type).
433 The UDC port supports OTG operation, and may be used as a host port
434 if it's not being used to implement peripheral or OTG roles.
436 Say "y" to link the driver statically, or "m" to build a
437 dynamically linked module called "amd5536udc" and force all
438 gadget drivers to also be dynamically linked.
440 config USB_AMD5536UDC
442 depends on USB_GADGET_AMD5536UDC
444 select USB_GADGET_SELECTED
446 config USB_GADGET_FSL_QE
447 boolean "Freescale QE/CPM USB Device Controller"
448 depends on FSL_SOC && (QUICC_ENGINE || CPM)
450 Some of Freescale PowerPC processors have a Full Speed
451 QE/CPM2 USB controller, which support device mode with 4
452 programmable endpoints. This driver supports the
453 controller in the MPC8360 and MPC8272, and should work with
454 controllers having QE or CPM2, given minor tweaks.
456 Set CONFIG_USB_GADGET to "m" to build this driver as a
457 dynamically linked module called "fsl_qe_udc".
461 depends on USB_GADGET_FSL_QE
463 select USB_GADGET_SELECTED
465 config USB_GADGET_CI13XXX_PCI
466 boolean "MIPS USB CI13xxx PCI UDC"
468 select USB_GADGET_DUALSPEED
470 MIPS USB IP core family device controller
471 Currently it only supports IP part number CI13412
473 Say "y" to link the driver statically, or "m" to build a
474 dynamically linked module called "ci13xxx_udc" and force all
475 gadget drivers to also be dynamically linked.
477 config USB_CI13XXX_PCI
479 depends on USB_GADGET_CI13XXX_PCI
481 select USB_GADGET_SELECTED
483 config USB_GADGET_NET2272
484 boolean "PLX NET2272"
485 select USB_GADGET_DUALSPEED
487 PLX NET2272 is a USB peripheral controller which supports
488 both full and high speed USB 2.0 data transfers.
490 It has three configurable endpoints, as well as endpoint zero
491 (for control transfer).
492 Say "y" to link the driver statically, or "m" to build a
493 dynamically linked module called "net2272" and force all
494 gadget drivers to also be dynamically linked.
496 config USB_GADGET_NET2272_DMA
497 boolean "Support external DMA controller"
498 depends on USB_GADGET_NET2272
500 The NET2272 part can optionally support an external DMA
501 controller, but your board has to have support in the
504 If unsure, say "N" here. The driver works fine in PIO mode.
508 depends on USB_GADGET_NET2272
510 select USB_GADGET_SELECTED
512 config USB_GADGET_NET2280
513 boolean "NetChip 228x"
515 select USB_GADGET_DUALSPEED
517 NetChip 2280 / 2282 is a PCI based USB peripheral controller which
518 supports both full and high speed USB 2.0 data transfers.
520 It has six configurable endpoints, as well as endpoint zero
521 (for control transfers) and several endpoints with dedicated
524 Say "y" to link the driver statically, or "m" to build a
525 dynamically linked module called "net2280" and force all
526 gadget drivers to also be dynamically linked.
530 depends on USB_GADGET_NET2280
532 select USB_GADGET_SELECTED
534 config USB_GADGET_GOKU
535 boolean "Toshiba TC86C001 'Goku-S'"
538 The Toshiba TC86C001 is a PCI device which includes controllers
539 for full speed USB devices, IDE, I2C, SIO, plus a USB host (OHCI).
541 The device controller has three configurable (bulk or interrupt)
542 endpoints, plus endpoint zero (for control transfers).
544 Say "y" to link the driver statically, or "m" to build a
545 dynamically linked module called "goku_udc" and to force all
546 gadget drivers to also be dynamically linked.
550 depends on USB_GADGET_GOKU
552 select USB_GADGET_SELECTED
554 config USB_GADGET_LANGWELL
555 boolean "Intel Langwell USB Device Controller"
557 select USB_GADGET_DUALSPEED
559 Intel Langwell USB Device Controller is a High-Speed USB
560 On-The-Go device controller.
562 The number of programmable endpoints is different through
565 Say "y" to link the driver statically, or "m" to build a
566 dynamically linked module called "langwell_udc" and force all
567 gadget drivers to also be dynamically linked.
571 depends on USB_GADGET_LANGWELL
573 select USB_GADGET_SELECTED
575 config USB_GADGET_EG20T
576 boolean "Intel EG20T PCH/OKI SEMICONDUCTOR ML7213 IOH UDC"
578 select USB_GADGET_DUALSPEED
580 This is a USB device driver for EG20T PCH.
581 EG20T PCH is the platform controller hub that is used in Intel's
582 general embedded platform. EG20T PCH has USB device interface.
583 Using this interface, it is able to access system devices connected
585 This driver enables USB device function.
586 USB device is a USB peripheral controller which
587 supports both full and high speed USB 2.0 data transfers.
588 This driver supports both control transfer and bulk transfer modes.
589 This driver dose not support interrupt transfer or isochronous
592 This driver also can be used for OKI SEMICONDUCTOR's ML7213 which is
593 for IVI(In-Vehicle Infotainment) use.
594 ML7213 is companion chip for Intel Atom E6xx series.
595 ML7213 is completely compatible for Intel EG20T PCH.
599 depends on USB_GADGET_EG20T
601 select USB_GADGET_SELECTED
603 config USB_GADGET_CI13XXX_MSM
604 boolean "MIPS USB CI13xxx for MSM"
606 select USB_GADGET_DUALSPEED
609 MSM SoC has chipidea USB controller. This driver uses
611 This driver depends on OTG driver for PHY initialization,
612 clock management, powering up VBUS, and power management.
613 This driver is not supported on boards like trout which
616 Say "y" to link the driver statically, or "m" to build a
617 dynamically linked module called "ci13xxx_msm" and force all
618 gadget drivers to also be dynamically linked.
620 config USB_CI13XXX_MSM
622 depends on USB_GADGET_CI13XXX_MSM
624 select USB_GADGET_SELECTED
627 # LAST -- dummy/emulated controller
630 config USB_GADGET_DUMMY_HCD
631 boolean "Dummy HCD (DEVELOPMENT)"
632 depends on USB=y || (USB=m && USB_GADGET=m)
633 select USB_GADGET_DUALSPEED
635 This host controller driver emulates USB, looping all data transfer
636 requests back to a USB "gadget driver" in the same host. The host
637 side is the master; the gadget side is the slave. Gadget drivers
638 can be high, full, or low speed; and they have access to endpoints
639 like those from NET2280, PXA2xx, or SA1100 hardware.
641 This may help in some stages of creating a driver to embed in a
642 Linux device, since it lets you debug several parts of the gadget
643 driver without its hardware or drivers being involved.
645 Since such a gadget side driver needs to interoperate with a host
646 side Linux-USB device driver, this may help to debug both sides
647 of a USB protocol stack.
649 Say "y" to link the driver statically, or "m" to build a
650 dynamically linked module called "dummy_hcd" and force all
651 gadget drivers to also be dynamically linked.
655 depends on USB_GADGET_DUMMY_HCD
657 select USB_GADGET_SELECTED
659 # NOTE: Please keep dummy_hcd LAST so that "real hardware" appears
660 # first and will be selected by default.
664 # Selected by UDC drivers that support high-speed operation.
665 config USB_GADGET_DUALSPEED
667 depends on USB_GADGET
673 tristate "USB Gadget Drivers"
674 depends on USB_GADGET && USB_GADGET_SELECTED
677 A Linux "Gadget Driver" talks to the USB Peripheral Controller
678 driver through the abstract "gadget" API. Some other operating
679 systems call these "client" drivers, of which "class drivers"
680 are a subset (implementing a USB device class specification).
681 A gadget driver implements one or more USB functions using
682 the peripheral hardware.
684 Gadget drivers are hardware-neutral, or "platform independent",
685 except that they sometimes must understand quirks or limitations
686 of the particular controllers they work with. For example, when
687 a controller doesn't support alternate configurations or provide
688 enough of the right types of endpoints, the gadget driver might
689 not be able work with that controller, or might need to implement
690 a less common variant of a device class protocol.
692 # this first set of drivers all depend on bulk-capable hardware.
695 tristate "Gadget Zero (DEVELOPMENT)"
697 Gadget Zero is a two-configuration device. It either sinks and
698 sources bulk data; or it loops back a configurable number of
699 transfers. It also implements control requests, for "chapter 9"
700 conformance. The driver needs only two bulk-capable endpoints, so
701 it can work on top of most device-side usb controllers. It's
702 useful for testing, and is also a working example showing how
703 USB "gadget drivers" can be written.
705 Make this be the first driver you try using on top of any new
706 USB peripheral controller driver. Then you can use host-side
707 test software, like the "usbtest" driver, to put your hardware
708 and its driver through a basic set of functional tests.
710 Gadget Zero also works with the host-side "usb-skeleton" driver,
711 and with many kinds of host-side test software. You may need
712 to tweak product and vendor IDs before host software knows about
713 this device, and arrange to select an appropriate configuration.
715 Say "y" to link the driver statically, or "m" to build a
716 dynamically linked module called "g_zero".
718 config USB_ZERO_HNPTEST
719 boolean "HNP Test Device"
720 depends on USB_ZERO && USB_OTG
722 You can configure this device to enumerate using the device
723 identifiers of the USB-OTG test device. That means that when
724 this gadget connects to another OTG device, with this one using
725 the "B-Peripheral" role, that device will use HNP to let this
726 one serve as the USB host instead (in the "B-Host" role).
729 tristate "Audio Gadget (EXPERIMENTAL)"
733 Gadget Audio is compatible with USB Audio Class specification 1.0.
734 It will include at least one AudioControl interface, zero or more
735 AudioStream interface and zero or more MIDIStream interface.
737 Gadget Audio will use on-board ALSA (CONFIG_SND) audio card to
738 playback or capture audio stream.
740 Say "y" to link the driver statically, or "m" to build a
741 dynamically linked module called "g_audio".
744 tristate "Ethernet Gadget (with CDC Ethernet support)"
748 This driver implements Ethernet style communication, in one of
751 - The "Communication Device Class" (CDC) Ethernet Control Model.
752 That protocol is often avoided with pure Ethernet adapters, in
753 favor of simpler vendor-specific hardware, but is widely
754 supported by firmware for smart network devices.
756 - On hardware can't implement that protocol, a simple CDC subset
757 is used, placing fewer demands on USB.
759 - CDC Ethernet Emulation Model (EEM) is a newer standard that has
760 a simpler interface that can be used by more USB hardware.
762 RNDIS support is an additional option, more demanding than than
765 Within the USB device, this gadget driver exposes a network device
766 "usbX", where X depends on what other networking devices you have.
767 Treat it like a two-node Ethernet link: host, and gadget.
769 The Linux-USB host-side "usbnet" driver interoperates with this
770 driver, so that deep I/O queues can be supported. On 2.4 kernels,
771 use "CDCEther" instead, if you're using the CDC option. That CDC
772 mode should also interoperate with standard CDC Ethernet class
773 drivers on other host operating systems.
775 Say "y" to link the driver statically, or "m" to build a
776 dynamically linked module called "g_ether".
783 Microsoft Windows XP bundles the "Remote NDIS" (RNDIS) protocol,
784 and Microsoft provides redistributable binary RNDIS drivers for
785 older versions of Windows.
787 If you say "y" here, the Ethernet gadget driver will try to provide
788 a second device configuration, supporting RNDIS to talk to such
791 To make MS-Windows work with this, use Documentation/usb/linux.inf
792 as the "driver info file". For versions of MS-Windows older than
793 XP, you'll need to download drivers from Microsoft's website; a URL
794 is given in comments found in that info file.
797 bool "Ethernet Emulation Model (EEM) support"
801 CDC EEM is a newer USB standard that is somewhat simpler than CDC ECM
802 and therefore can be supported by more hardware. Technically ECM and
803 EEM are designed for different applications. The ECM model extends
804 the network interface to the target (e.g. a USB cable modem), and the
805 EEM model is for mobile devices to communicate with hosts using
806 ethernet over USB. For Linux gadgets, however, the interface with
807 the host is the same (a usbX device), so the differences are minimal.
809 If you say "y" here, the Ethernet gadget driver will use the EEM
810 protocol rather than ECM. If unsure, say "n".
813 tristate "Network Control Model (NCM) support"
817 This driver implements USB CDC NCM subclass standard. NCM is
818 an advanced protocol for Ethernet encapsulation, allows grouping
819 of several ethernet frames into one USB transfer and diffferent
820 alignment possibilities.
822 Say "y" to link the driver statically, or "m" to build a
823 dynamically linked module called "g_ncm".
826 tristate "Gadget Filesystem (EXPERIMENTAL)"
827 depends on EXPERIMENTAL
829 This driver provides a filesystem based API that lets user mode
830 programs implement a single-configuration USB device, including
831 endpoint I/O and control requests that don't relate to enumeration.
832 All endpoints, transfer speeds, and transfer types supported by
833 the hardware are available, through read() and write() calls.
835 Currently, this option is still labelled as EXPERIMENTAL because
836 of existing race conditions in the underlying in-kernel AIO core.
838 Say "y" to link the driver statically, or "m" to build a
839 dynamically linked module called "gadgetfs".
841 config USB_FUNCTIONFS
842 tristate "Function Filesystem (EXPERIMENTAL)"
843 depends on EXPERIMENTAL
844 select USB_FUNCTIONFS_GENERIC if !(USB_FUNCTIONFS_ETH || USB_FUNCTIONFS_RNDIS)
846 The Function Filesystem (FunctionFS) lets one create USB
847 composite functions in user space in the same way GadgetFS
848 lets one create USB gadgets in user space. This allows creation
849 of composite gadgets such that some of the functions are
850 implemented in kernel space (for instance Ethernet, serial or
851 mass storage) and other are implemented in user space.
853 If you say "y" or "m" here you will be able what kind of
854 configurations the gadget will provide.
856 Say "y" to link the driver statically, or "m" to build
857 a dynamically linked module called "g_ffs".
859 config USB_FUNCTIONFS_ETH
860 bool "Include configuration with CDC ECM (Ethernet)"
861 depends on USB_FUNCTIONFS && NET
863 Include a configuration with CDC ECM function (Ethernet) and the
866 config USB_FUNCTIONFS_RNDIS
867 bool "Include configuration with RNDIS (Ethernet)"
868 depends on USB_FUNCTIONFS && NET
870 Include a configuration with RNDIS function (Ethernet) and the Filesystem.
872 config USB_FUNCTIONFS_GENERIC
873 bool "Include 'pure' configuration"
874 depends on USB_FUNCTIONFS
876 Include a configuration with the Function Filesystem alone with
877 no Ethernet interface.
879 config USB_FILE_STORAGE
880 tristate "File-backed Storage Gadget (DEPRECATED)"
883 The File-backed Storage Gadget acts as a USB Mass Storage
884 disk drive. As its storage repository it can use a regular
885 file or a block device (in much the same way as the "loop"
886 device driver), specified as a module parameter.
888 Say "y" to link the driver statically, or "m" to build a
889 dynamically linked module called "g_file_storage".
891 NOTE: This driver is deprecated. Its replacement is the
894 config USB_FILE_STORAGE_TEST
895 bool "File-backed Storage Gadget testing version"
896 depends on USB_FILE_STORAGE
899 Say "y" to generate the larger testing version of the
900 File-backed Storage Gadget, useful for probing the
901 behavior of USB Mass Storage hosts. Not needed for
904 config USB_MASS_STORAGE
905 tristate "Mass Storage Gadget"
908 The Mass Storage Gadget acts as a USB Mass Storage disk drive.
909 As its storage repository it can use a regular file or a block
910 device (in much the same way as the "loop" device driver),
911 specified as a module parameter or sysfs option.
913 This driver is an updated replacement for the deprecated
914 File-backed Storage Gadget (g_file_storage).
916 Say "y" to link the driver statically, or "m" to build
917 a dynamically linked module called "g_mass_storage".
920 tristate "Serial Gadget (with CDC ACM and CDC OBEX support)"
922 The Serial Gadget talks to the Linux-USB generic serial driver.
923 This driver supports a CDC-ACM module option, which can be used
924 to interoperate with MS-Windows hosts or with the Linux-USB
927 This driver also supports a CDC-OBEX option. You will need a
928 user space OBEX server talking to /dev/ttyGS*, since the kernel
929 itself doesn't implement the OBEX protocol.
931 Say "y" to link the driver statically, or "m" to build a
932 dynamically linked module called "g_serial".
934 For more information, see Documentation/usb/gadget_serial.txt
935 which includes instructions and a "driver info file" needed to
936 make MS-Windows work with CDC ACM.
938 config USB_MIDI_GADGET
939 tristate "MIDI Gadget (EXPERIMENTAL)"
940 depends on SND && EXPERIMENTAL
943 The MIDI Gadget acts as a USB Audio device, with one MIDI
944 input and one MIDI output. These MIDI jacks appear as
945 a sound "card" in the ALSA sound system. Other MIDI
946 connections can then be made on the gadget system, using
947 ALSA's aconnect utility etc.
949 Say "y" to link the driver statically, or "m" to build a
950 dynamically linked module called "g_midi".
953 tristate "Printer Gadget"
955 The Printer Gadget channels data between the USB host and a
956 userspace program driving the print engine. The user space
957 program reads and writes the device file /dev/g_printer to
958 receive or send printer data. It can use ioctl calls to
959 the device file to get or set printer status.
961 Say "y" to link the driver statically, or "m" to build a
962 dynamically linked module called "g_printer".
964 For more information, see Documentation/usb/gadget_printer.txt
965 which includes sample code for accessing the device file.
967 config USB_CDC_COMPOSITE
968 tristate "CDC Composite Device (Ethernet and ACM)"
971 This driver provides two functions in one configuration:
972 a CDC Ethernet (ECM) link, and a CDC ACM (serial port) link.
974 This driver requires four bulk and two interrupt endpoints,
975 plus the ability to handle altsettings. Not all peripheral
976 controllers are that capable.
978 Say "y" to link the driver statically, or "m" to build a
979 dynamically linked module.
982 tristate "Nokia composite gadget"
985 The Nokia composite gadget provides support for acm, obex
986 and phonet in only one composite gadget driver.
988 It's only really useful for N900 hardware. If you're building
989 a kernel for N900, say Y or M here. If unsure, say N.
992 tristate "Multifunction Composite Gadget (EXPERIMENTAL)"
993 depends on BLOCK && NET
994 select USB_G_MULTI_CDC if !USB_G_MULTI_RNDIS
996 The Multifunction Composite Gadget provides Ethernet (RNDIS
997 and/or CDC Ethernet), mass storage and ACM serial link
1000 You will be asked to choose which of the two configurations is
1001 to be available in the gadget. At least one configuration must
1002 be chosen to make the gadget usable. Selecting more than one
1003 configuration will prevent Windows from automatically detecting
1004 the gadget as a composite gadget, so an INF file will be needed to
1007 Say "y" to link the driver statically, or "m" to build a
1008 dynamically linked module called "g_multi".
1010 config USB_G_MULTI_RNDIS
1011 bool "RNDIS + CDC Serial + Storage configuration"
1012 depends on USB_G_MULTI
1015 This option enables a configuration with RNDIS, CDC Serial and
1016 Mass Storage functions available in the Multifunction Composite
1017 Gadget. This is the configuration dedicated for Windows since RNDIS
1018 is Microsoft's protocol.
1022 config USB_G_MULTI_CDC
1023 bool "CDC Ethernet + CDC Serial + Storage configuration"
1024 depends on USB_G_MULTI
1027 This option enables a configuration with CDC Ethernet (ECM), CDC
1028 Serial and Mass Storage functions available in the Multifunction
1034 tristate "HID Gadget"
1036 The HID gadget driver provides generic emulation of USB
1037 Human Interface Devices (HID).
1039 For more information, see Documentation/usb/gadget_hid.txt which
1040 includes sample code for accessing the device files.
1042 Say "y" to link the driver statically, or "m" to build a
1043 dynamically linked module called "g_hid".
1046 tristate "EHCI Debug Device Gadget"
1048 This gadget emulates an EHCI Debug device. This is useful when you want
1049 to interact with an EHCI Debug Port.
1051 Say "y" to link the driver statically, or "m" to build a
1052 dynamically linked module called "g_dbgp".
1056 prompt "EHCI Debug Device mode"
1057 default USB_G_DBGP_SERIAL
1059 config USB_G_DBGP_PRINTK
1060 depends on USB_G_DBGP
1063 Directly printk() received data. No interaction.
1065 config USB_G_DBGP_SERIAL
1066 depends on USB_G_DBGP
1069 Userland can interact using /dev/ttyGSxxx.
1073 # put drivers that need isochronous transfer support (for audio
1074 # or video class gadget drivers), or specific hardware, here.
1076 tristate "USB Webcam Gadget"
1077 depends on VIDEO_DEV
1079 The Webcam Gadget acts as a composite USB Audio and Video Class
1080 device. It provides a userspace API to process UVC control requests
1081 and stream video data to the host.
1083 Say "y" to link the driver statically, or "m" to build a
1084 dynamically linked module called "g_webcam".