805 lines
27 KiB
Plaintext
805 lines
27 KiB
Plaintext
#
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# USB Gadget support on a system involves
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# (a) a peripheral controller, and
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# (b) the gadget driver using it.
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#
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# NOTE: Gadget support ** DOES NOT ** depend on host-side CONFIG_USB !!
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#
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# - Host systems (like PCs) need CONFIG_USB (with "A" jacks).
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# - Peripherals (like PDAs) need CONFIG_USB_GADGET (with "B" jacks).
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# - Some systems have both kinds of controllers.
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#
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# With help from a special transceiver and a "Mini-AB" jack, systems with
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# both kinds of controller can also support "USB On-the-Go" (CONFIG_USB_OTG).
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#
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menuconfig USB_GADGET
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tristate "USB Gadget Support"
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help
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USB is a master/slave protocol, organized with one master
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host (such as a PC) controlling up to 127 peripheral devices.
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The USB hardware is asymmetric, which makes it easier to set up:
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you can't connect a "to-the-host" connector to a peripheral.
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Linux can run in the host, or in the peripheral. In both cases
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you need a low level bus controller driver, and some software
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talking to it. Peripheral controllers are often discrete silicon,
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or are integrated with the CPU in a microcontroller. The more
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familiar host side controllers have names like "EHCI", "OHCI",
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or "UHCI", and are usually integrated into southbridges on PC
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motherboards.
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Enable this configuration option if you want to run Linux inside
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a USB peripheral device. Configure one hardware driver for your
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peripheral/device side bus controller, and a "gadget driver" for
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your peripheral protocol. (If you use modular gadget drivers,
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you may configure more than one.)
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If in doubt, say "N" and don't enable these drivers; most people
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don't have this kind of hardware (except maybe inside Linux PDAs).
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For more information, see <http://www.linux-usb.org/gadget> and
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the kernel DocBook documentation for this API.
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if USB_GADGET
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config USB_GADGET_DEBUG
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boolean "Debugging messages (DEVELOPMENT)"
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depends on DEBUG_KERNEL
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help
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Many controller and gadget drivers will print some debugging
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messages if you use this option to ask for those messages.
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Avoid enabling these messages, even if you're actively
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debugging such a driver. Many drivers will emit so many
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messages that the driver timings are affected, which will
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either create new failure modes or remove the one you're
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trying to track down. Never enable these messages for a
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production build.
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config USB_GADGET_DEBUG_FILES
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boolean "Debugging information files (DEVELOPMENT)"
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depends on PROC_FS
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help
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Some of the drivers in the "gadget" framework can expose
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debugging information in files such as /proc/driver/udc
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(for a peripheral controller). The information in these
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files may help when you're troubleshooting or bringing up a
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driver on a new board. Enable these files by choosing "Y"
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here. If in doubt, or to conserve kernel memory, say "N".
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config USB_GADGET_DEBUG_FS
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boolean "Debugging information files in debugfs (DEVELOPMENT)"
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depends on DEBUG_FS
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help
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Some of the drivers in the "gadget" framework can expose
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debugging information in files under /sys/kernel/debug/.
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The information in these files may help when you're
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troubleshooting or bringing up a driver on a new board.
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Enable these files by choosing "Y" here. If in doubt, or
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to conserve kernel memory, say "N".
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config USB_GADGET_VBUS_DRAW
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int "Maximum VBUS Power usage (2-500 mA)"
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range 2 500
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default 2
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help
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Some devices need to draw power from USB when they are
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configured, perhaps to operate circuitry or to recharge
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batteries. This is in addition to any local power supply,
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such as an AC adapter or batteries.
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Enter the maximum power your device draws through USB, in
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milliAmperes. The permitted range of values is 2 - 500 mA;
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0 mA would be legal, but can make some hosts misbehave.
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This value will be used except for system-specific gadget
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drivers that have more specific information.
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config USB_GADGET_SELECTED
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boolean
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#
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# USB Peripheral Controller Support
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#
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# The order here is alphabetical, except that integrated controllers go
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# before discrete ones so they will be the initial/default value:
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# - integrated/SOC controllers first
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# - licensed IP used in both SOC and discrete versions
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# - discrete ones (including all PCI-only controllers)
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# - debug/dummy gadget+hcd is last.
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#
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choice
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prompt "USB Peripheral Controller"
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depends on USB_GADGET
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help
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A USB device uses a controller to talk to its host.
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Systems should have only one such upstream link.
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Many controller drivers are platform-specific; these
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often need board-specific hooks.
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#
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# Integrated controllers
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#
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config USB_GADGET_AT91
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boolean "Atmel AT91 USB Device Port"
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depends on ARCH_AT91 && !ARCH_AT91SAM9RL && !ARCH_AT91CAP9 && !ARCH_AT91SAM9G45
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select USB_GADGET_SELECTED
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help
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Many Atmel AT91 processors (such as the AT91RM2000) have a
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full speed USB Device Port with support for five configurable
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endpoints (plus endpoint zero).
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Say "y" to link the driver statically, or "m" to build a
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dynamically linked module called "at91_udc" and force all
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gadget drivers to also be dynamically linked.
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config USB_AT91
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tristate
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depends on USB_GADGET_AT91
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default USB_GADGET
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config USB_GADGET_ATMEL_USBA
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boolean "Atmel USBA"
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select USB_GADGET_DUALSPEED
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depends on AVR32 || ARCH_AT91CAP9 || ARCH_AT91SAM9RL || ARCH_AT91SAM9G45
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help
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USBA is the integrated high-speed USB Device controller on
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the AT32AP700x, some AT91SAM9 and AT91CAP9 processors from Atmel.
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config USB_ATMEL_USBA
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tristate
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depends on USB_GADGET_ATMEL_USBA
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default USB_GADGET
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select USB_GADGET_SELECTED
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config USB_GADGET_FSL_USB2
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boolean "Freescale Highspeed USB DR Peripheral Controller"
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depends on FSL_SOC || ARCH_MXC
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select USB_GADGET_DUALSPEED
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help
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Some of Freescale PowerPC processors have a High Speed
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Dual-Role(DR) USB controller, which supports device mode.
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The number of programmable endpoints is different through
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SOC revisions.
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Say "y" to link the driver statically, or "m" to build a
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dynamically linked module called "fsl_usb2_udc" and force
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all gadget drivers to also be dynamically linked.
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config USB_FSL_USB2
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tristate
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depends on USB_GADGET_FSL_USB2
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default USB_GADGET
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select USB_GADGET_SELECTED
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config USB_GADGET_LH7A40X
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boolean "LH7A40X"
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depends on ARCH_LH7A40X
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help
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This driver provides USB Device Controller driver for LH7A40x
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config USB_LH7A40X
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tristate
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depends on USB_GADGET_LH7A40X
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default USB_GADGET
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select USB_GADGET_SELECTED
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config USB_GADGET_OMAP
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boolean "OMAP USB Device Controller"
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depends on ARCH_OMAP
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select ISP1301_OMAP if MACH_OMAP_H2 || MACH_OMAP_H3 || MACH_OMAP_H4_OTG
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select USB_OTG_UTILS if ARCH_OMAP
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help
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Many Texas Instruments OMAP processors have flexible full
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speed USB device controllers, with support for up to 30
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endpoints (plus endpoint zero). This driver supports the
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controller in the OMAP 1611, and should work with controllers
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in other OMAP processors too, given minor tweaks.
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Say "y" to link the driver statically, or "m" to build a
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dynamically linked module called "omap_udc" and force all
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gadget drivers to also be dynamically linked.
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config USB_OMAP
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tristate
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depends on USB_GADGET_OMAP
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default USB_GADGET
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select USB_GADGET_SELECTED
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config USB_OTG
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boolean "OTG Support"
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depends on USB_GADGET_OMAP && ARCH_OMAP_OTG && USB_OHCI_HCD
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help
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The most notable feature of USB OTG is support for a
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"Dual-Role" device, which can act as either a device
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or a host. The initial role choice can be changed
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later, when two dual-role devices talk to each other.
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Select this only if your OMAP board has a Mini-AB connector.
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config USB_GADGET_PXA25X
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boolean "PXA 25x or IXP 4xx"
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depends on (ARCH_PXA && PXA25x) || ARCH_IXP4XX
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select USB_OTG_UTILS
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help
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Intel's PXA 25x series XScale ARM-5TE processors include
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an integrated full speed USB 1.1 device controller. The
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controller in the IXP 4xx series is register-compatible.
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It has fifteen fixed-function endpoints, as well as endpoint
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zero (for control transfers).
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Say "y" to link the driver statically, or "m" to build a
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dynamically linked module called "pxa25x_udc" and force all
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gadget drivers to also be dynamically linked.
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config USB_PXA25X
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tristate
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depends on USB_GADGET_PXA25X
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default USB_GADGET
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select USB_GADGET_SELECTED
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# if there's only one gadget driver, using only two bulk endpoints,
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# don't waste memory for the other endpoints
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config USB_PXA25X_SMALL
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depends on USB_GADGET_PXA25X
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bool
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default n if USB_ETH_RNDIS
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default y if USB_ZERO
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default y if USB_ETH
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default y if USB_G_SERIAL
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config USB_GADGET_R8A66597
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boolean "Renesas R8A66597 USB Peripheral Controller"
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select USB_GADGET_DUALSPEED
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help
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R8A66597 is a discrete USB host and peripheral controller chip that
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supports both full and high speed USB 2.0 data transfers.
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It has nine configurable endpoints, and endpoint zero.
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Say "y" to link the driver statically, or "m" to build a
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dynamically linked module called "r8a66597_udc" and force all
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gadget drivers to also be dynamically linked.
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config USB_R8A66597
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tristate
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depends on USB_GADGET_R8A66597
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default USB_GADGET
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select USB_GADGET_SELECTED
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config USB_GADGET_PXA27X
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boolean "PXA 27x"
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depends on ARCH_PXA && (PXA27x || PXA3xx)
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select USB_OTG_UTILS
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help
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Intel's PXA 27x series XScale ARM v5TE processors include
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an integrated full speed USB 1.1 device controller.
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It has up to 23 endpoints, as well as endpoint zero (for
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control transfers).
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Say "y" to link the driver statically, or "m" to build a
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dynamically linked module called "pxa27x_udc" and force all
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gadget drivers to also be dynamically linked.
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config USB_PXA27X
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tristate
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depends on USB_GADGET_PXA27X
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default USB_GADGET
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select USB_GADGET_SELECTED
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config USB_GADGET_S3C_HSOTG
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boolean "S3C HS/OtG USB Device controller"
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depends on S3C_DEV_USB_HSOTG
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select USB_GADGET_S3C_HSOTG_PIO
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help
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The Samsung S3C64XX USB2.0 high-speed gadget controller
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integrated into the S3C64XX series SoC.
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config USB_S3C_HSOTG
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tristate
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depends on USB_GADGET_S3C_HSOTG
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default USB_GADGET
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select USB_GADGET_SELECTED
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config USB_GADGET_IMX
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boolean "Freescale IMX USB Peripheral Controller"
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depends on ARCH_MX1
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help
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Freescale's IMX series include an integrated full speed
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USB 1.1 device controller. The controller in the IMX series
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is register-compatible.
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It has Six fixed-function endpoints, as well as endpoint
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zero (for control transfers).
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Say "y" to link the driver statically, or "m" to build a
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dynamically linked module called "imx_udc" and force all
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gadget drivers to also be dynamically linked.
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config USB_IMX
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tristate
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depends on USB_GADGET_IMX
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default USB_GADGET
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select USB_GADGET_SELECTED
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config USB_GADGET_S3C2410
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boolean "S3C2410 USB Device Controller"
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depends on ARCH_S3C2410
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help
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Samsung's S3C2410 is an ARM-4 processor with an integrated
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full speed USB 1.1 device controller. It has 4 configurable
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endpoints, as well as endpoint zero (for control transfers).
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This driver has been tested on the S3C2410, S3C2412, and
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S3C2440 processors.
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config USB_S3C2410
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tristate
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depends on USB_GADGET_S3C2410
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default USB_GADGET
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select USB_GADGET_SELECTED
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config USB_S3C2410_DEBUG
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boolean "S3C2410 udc debug messages"
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depends on USB_GADGET_S3C2410
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#
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# Controllers available in both integrated and discrete versions
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#
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# musb builds in ../musb along with host support
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config USB_GADGET_MUSB_HDRC
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boolean "Inventra HDRC USB Peripheral (TI, ADI, ...)"
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depends on USB_MUSB_HDRC && (USB_MUSB_PERIPHERAL || USB_MUSB_OTG)
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select USB_GADGET_DUALSPEED
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select USB_GADGET_SELECTED
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help
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This OTG-capable silicon IP is used in dual designs including
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the TI DaVinci, OMAP 243x, OMAP 343x, TUSB 6010, and ADI Blackfin
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config USB_GADGET_M66592
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boolean "Renesas M66592 USB Peripheral Controller"
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select USB_GADGET_DUALSPEED
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help
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M66592 is a discrete USB peripheral controller chip that
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supports both full and high speed USB 2.0 data transfers.
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It has seven configurable endpoints, and endpoint zero.
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Say "y" to link the driver statically, or "m" to build a
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dynamically linked module called "m66592_udc" and force all
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gadget drivers to also be dynamically linked.
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config USB_M66592
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tristate
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depends on USB_GADGET_M66592
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default USB_GADGET
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select USB_GADGET_SELECTED
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#
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# Controllers available only in discrete form (and all PCI controllers)
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#
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config USB_GADGET_AMD5536UDC
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boolean "AMD5536 UDC"
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depends on PCI
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select USB_GADGET_DUALSPEED
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help
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The AMD5536 UDC is part of the AMD Geode CS5536, an x86 southbridge.
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It is a USB Highspeed DMA capable USB device controller. Beside ep0
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it provides 4 IN and 4 OUT endpoints (bulk or interrupt type).
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The UDC port supports OTG operation, and may be used as a host port
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if it's not being used to implement peripheral or OTG roles.
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Say "y" to link the driver statically, or "m" to build a
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dynamically linked module called "amd5536udc" and force all
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gadget drivers to also be dynamically linked.
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config USB_AMD5536UDC
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tristate
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depends on USB_GADGET_AMD5536UDC
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default USB_GADGET
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select USB_GADGET_SELECTED
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config USB_GADGET_FSL_QE
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boolean "Freescale QE/CPM USB Device Controller"
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depends on FSL_SOC && (QUICC_ENGINE || CPM)
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help
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Some of Freescale PowerPC processors have a Full Speed
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QE/CPM2 USB controller, which support device mode with 4
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programmable endpoints. This driver supports the
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controller in the MPC8360 and MPC8272, and should work with
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controllers having QE or CPM2, given minor tweaks.
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Set CONFIG_USB_GADGET to "m" to build this driver as a
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dynamically linked module called "fsl_qe_udc".
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config USB_FSL_QE
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tristate
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depends on USB_GADGET_FSL_QE
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default USB_GADGET
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select USB_GADGET_SELECTED
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config USB_GADGET_CI13XXX
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boolean "MIPS USB CI13xxx"
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depends on PCI
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select USB_GADGET_DUALSPEED
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help
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MIPS USB IP core family device controller
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Currently it only supports IP part number CI13412
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Say "y" to link the driver statically, or "m" to build a
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dynamically linked module called "ci13xxx_udc" and force all
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gadget drivers to also be dynamically linked.
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config USB_CI13XXX
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tristate
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depends on USB_GADGET_CI13XXX
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default USB_GADGET
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select USB_GADGET_SELECTED
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config USB_GADGET_NET2280
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boolean "NetChip 228x"
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depends on PCI
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select USB_GADGET_DUALSPEED
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help
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NetChip 2280 / 2282 is a PCI based USB peripheral controller which
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supports both full and high speed USB 2.0 data transfers.
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It has six configurable endpoints, as well as endpoint zero
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(for control transfers) and several endpoints with dedicated
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functions.
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Say "y" to link the driver statically, or "m" to build a
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dynamically linked module called "net2280" and force all
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gadget drivers to also be dynamically linked.
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config USB_NET2280
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tristate
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depends on USB_GADGET_NET2280
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default USB_GADGET
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select USB_GADGET_SELECTED
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config USB_GADGET_GOKU
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boolean "Toshiba TC86C001 'Goku-S'"
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depends on PCI
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help
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The Toshiba TC86C001 is a PCI device which includes controllers
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for full speed USB devices, IDE, I2C, SIO, plus a USB host (OHCI).
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The device controller has three configurable (bulk or interrupt)
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endpoints, plus endpoint zero (for control transfers).
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Say "y" to link the driver statically, or "m" to build a
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dynamically linked module called "goku_udc" and to force all
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gadget drivers to also be dynamically linked.
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config USB_GOKU
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tristate
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depends on USB_GADGET_GOKU
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default USB_GADGET
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select USB_GADGET_SELECTED
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config USB_GADGET_LANGWELL
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boolean "Intel Langwell USB Device Controller"
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depends on PCI
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select USB_GADGET_DUALSPEED
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help
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Intel Langwell USB Device Controller is a High-Speed USB
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On-The-Go device controller.
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The number of programmable endpoints is different through
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controller revision.
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Say "y" to link the driver statically, or "m" to build a
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dynamically linked module called "langwell_udc" and force all
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gadget drivers to also be dynamically linked.
|
|
|
|
config USB_LANGWELL
|
|
tristate
|
|
depends on USB_GADGET_LANGWELL
|
|
default USB_GADGET
|
|
select USB_GADGET_SELECTED
|
|
|
|
|
|
#
|
|
# LAST -- dummy/emulated controller
|
|
#
|
|
|
|
config USB_GADGET_DUMMY_HCD
|
|
boolean "Dummy HCD (DEVELOPMENT)"
|
|
depends on USB=y || (USB=m && USB_GADGET=m)
|
|
select USB_GADGET_DUALSPEED
|
|
help
|
|
This host controller driver emulates USB, looping all data transfer
|
|
requests back to a USB "gadget driver" in the same host. The host
|
|
side is the master; the gadget side is the slave. Gadget drivers
|
|
can be high, full, or low speed; and they have access to endpoints
|
|
like those from NET2280, PXA2xx, or SA1100 hardware.
|
|
|
|
This may help in some stages of creating a driver to embed in a
|
|
Linux device, since it lets you debug several parts of the gadget
|
|
driver without its hardware or drivers being involved.
|
|
|
|
Since such a gadget side driver needs to interoperate with a host
|
|
side Linux-USB device driver, this may help to debug both sides
|
|
of a USB protocol stack.
|
|
|
|
Say "y" to link the driver statically, or "m" to build a
|
|
dynamically linked module called "dummy_hcd" and force all
|
|
gadget drivers to also be dynamically linked.
|
|
|
|
config USB_DUMMY_HCD
|
|
tristate
|
|
depends on USB_GADGET_DUMMY_HCD
|
|
default USB_GADGET
|
|
select USB_GADGET_SELECTED
|
|
|
|
# NOTE: Please keep dummy_hcd LAST so that "real hardware" appears
|
|
# first and will be selected by default.
|
|
|
|
endchoice
|
|
|
|
config USB_GADGET_DUALSPEED
|
|
bool
|
|
depends on USB_GADGET
|
|
default n
|
|
help
|
|
Means that gadget drivers should include extra descriptors
|
|
and code to handle dual-speed controllers.
|
|
|
|
#
|
|
# USB Gadget Drivers
|
|
#
|
|
choice
|
|
tristate "USB Gadget Drivers"
|
|
depends on USB_GADGET && USB_GADGET_SELECTED
|
|
default USB_ETH
|
|
help
|
|
A Linux "Gadget Driver" talks to the USB Peripheral Controller
|
|
driver through the abstract "gadget" API. Some other operating
|
|
systems call these "client" drivers, of which "class drivers"
|
|
are a subset (implementing a USB device class specification).
|
|
A gadget driver implements one or more USB functions using
|
|
the peripheral hardware.
|
|
|
|
Gadget drivers are hardware-neutral, or "platform independent",
|
|
except that they sometimes must understand quirks or limitations
|
|
of the particular controllers they work with. For example, when
|
|
a controller doesn't support alternate configurations or provide
|
|
enough of the right types of endpoints, the gadget driver might
|
|
not be able work with that controller, or might need to implement
|
|
a less common variant of a device class protocol.
|
|
|
|
# this first set of drivers all depend on bulk-capable hardware.
|
|
|
|
config USB_ZERO
|
|
tristate "Gadget Zero (DEVELOPMENT)"
|
|
help
|
|
Gadget Zero is a two-configuration device. It either sinks and
|
|
sources bulk data; or it loops back a configurable number of
|
|
transfers. It also implements control requests, for "chapter 9"
|
|
conformance. The driver needs only two bulk-capable endpoints, so
|
|
it can work on top of most device-side usb controllers. It's
|
|
useful for testing, and is also a working example showing how
|
|
USB "gadget drivers" can be written.
|
|
|
|
Make this be the first driver you try using on top of any new
|
|
USB peripheral controller driver. Then you can use host-side
|
|
test software, like the "usbtest" driver, to put your hardware
|
|
and its driver through a basic set of functional tests.
|
|
|
|
Gadget Zero also works with the host-side "usb-skeleton" driver,
|
|
and with many kinds of host-side test software. You may need
|
|
to tweak product and vendor IDs before host software knows about
|
|
this device, and arrange to select an appropriate configuration.
|
|
|
|
Say "y" to link the driver statically, or "m" to build a
|
|
dynamically linked module called "g_zero".
|
|
|
|
config USB_ZERO_HNPTEST
|
|
boolean "HNP Test Device"
|
|
depends on USB_ZERO && USB_OTG
|
|
help
|
|
You can configure this device to enumerate using the device
|
|
identifiers of the USB-OTG test device. That means that when
|
|
this gadget connects to another OTG device, with this one using
|
|
the "B-Peripheral" role, that device will use HNP to let this
|
|
one serve as the USB host instead (in the "B-Host" role).
|
|
|
|
config USB_AUDIO
|
|
tristate "Audio Gadget (EXPERIMENTAL)"
|
|
depends on SND
|
|
select SND_PCM
|
|
help
|
|
Gadget Audio is compatible with USB Audio Class specification 1.0.
|
|
It will include at least one AudioControl interface, zero or more
|
|
AudioStream interface and zero or more MIDIStream interface.
|
|
|
|
Gadget Audio will use on-board ALSA (CONFIG_SND) audio card to
|
|
playback or capture audio stream.
|
|
|
|
Say "y" to link the driver statically, or "m" to build a
|
|
dynamically linked module called "g_audio".
|
|
|
|
config USB_ETH
|
|
tristate "Ethernet Gadget (with CDC Ethernet support)"
|
|
depends on NET
|
|
select CRC32
|
|
help
|
|
This driver implements Ethernet style communication, in one of
|
|
several ways:
|
|
|
|
- The "Communication Device Class" (CDC) Ethernet Control Model.
|
|
That protocol is often avoided with pure Ethernet adapters, in
|
|
favor of simpler vendor-specific hardware, but is widely
|
|
supported by firmware for smart network devices.
|
|
|
|
- On hardware can't implement that protocol, a simple CDC subset
|
|
is used, placing fewer demands on USB.
|
|
|
|
- CDC Ethernet Emulation Model (EEM) is a newer standard that has
|
|
a simpler interface that can be used by more USB hardware.
|
|
|
|
RNDIS support is an additional option, more demanding than than
|
|
subset.
|
|
|
|
Within the USB device, this gadget driver exposes a network device
|
|
"usbX", where X depends on what other networking devices you have.
|
|
Treat it like a two-node Ethernet link: host, and gadget.
|
|
|
|
The Linux-USB host-side "usbnet" driver interoperates with this
|
|
driver, so that deep I/O queues can be supported. On 2.4 kernels,
|
|
use "CDCEther" instead, if you're using the CDC option. That CDC
|
|
mode should also interoperate with standard CDC Ethernet class
|
|
drivers on other host operating systems.
|
|
|
|
Say "y" to link the driver statically, or "m" to build a
|
|
dynamically linked module called "g_ether".
|
|
|
|
config USB_ETH_RNDIS
|
|
bool "RNDIS support"
|
|
depends on USB_ETH
|
|
default y
|
|
help
|
|
Microsoft Windows XP bundles the "Remote NDIS" (RNDIS) protocol,
|
|
and Microsoft provides redistributable binary RNDIS drivers for
|
|
older versions of Windows.
|
|
|
|
If you say "y" here, the Ethernet gadget driver will try to provide
|
|
a second device configuration, supporting RNDIS to talk to such
|
|
Microsoft USB hosts.
|
|
|
|
To make MS-Windows work with this, use Documentation/usb/linux.inf
|
|
as the "driver info file". For versions of MS-Windows older than
|
|
XP, you'll need to download drivers from Microsoft's website; a URL
|
|
is given in comments found in that info file.
|
|
|
|
config USB_ETH_EEM
|
|
bool "Ethernet Emulation Model (EEM) support"
|
|
depends on USB_ETH
|
|
default n
|
|
help
|
|
CDC EEM is a newer USB standard that is somewhat simpler than CDC ECM
|
|
and therefore can be supported by more hardware. Technically ECM and
|
|
EEM are designed for different applications. The ECM model extends
|
|
the network interface to the target (e.g. a USB cable modem), and the
|
|
EEM model is for mobile devices to communicate with hosts using
|
|
ethernet over USB. For Linux gadgets, however, the interface with
|
|
the host is the same (a usbX device), so the differences are minimal.
|
|
|
|
If you say "y" here, the Ethernet gadget driver will use the EEM
|
|
protocol rather than ECM. If unsure, say "n".
|
|
|
|
config USB_GADGETFS
|
|
tristate "Gadget Filesystem (EXPERIMENTAL)"
|
|
depends on EXPERIMENTAL
|
|
help
|
|
This driver provides a filesystem based API that lets user mode
|
|
programs implement a single-configuration USB device, including
|
|
endpoint I/O and control requests that don't relate to enumeration.
|
|
All endpoints, transfer speeds, and transfer types supported by
|
|
the hardware are available, through read() and write() calls.
|
|
|
|
Currently, this option is still labelled as EXPERIMENTAL because
|
|
of existing race conditions in the underlying in-kernel AIO core.
|
|
|
|
Say "y" to link the driver statically, or "m" to build a
|
|
dynamically linked module called "gadgetfs".
|
|
|
|
config USB_FILE_STORAGE
|
|
tristate "File-backed Storage Gadget"
|
|
depends on BLOCK
|
|
help
|
|
The File-backed Storage Gadget acts as a USB Mass Storage
|
|
disk drive. As its storage repository it can use a regular
|
|
file or a block device (in much the same way as the "loop"
|
|
device driver), specified as a module parameter.
|
|
|
|
Say "y" to link the driver statically, or "m" to build a
|
|
dynamically linked module called "g_file_storage".
|
|
|
|
config USB_FILE_STORAGE_TEST
|
|
bool "File-backed Storage Gadget testing version"
|
|
depends on USB_FILE_STORAGE
|
|
default n
|
|
help
|
|
Say "y" to generate the larger testing version of the
|
|
File-backed Storage Gadget, useful for probing the
|
|
behavior of USB Mass Storage hosts. Not needed for
|
|
normal operation.
|
|
|
|
config USB_G_SERIAL
|
|
tristate "Serial Gadget (with CDC ACM and CDC OBEX support)"
|
|
help
|
|
The Serial Gadget talks to the Linux-USB generic serial driver.
|
|
This driver supports a CDC-ACM module option, which can be used
|
|
to interoperate with MS-Windows hosts or with the Linux-USB
|
|
"cdc-acm" driver.
|
|
|
|
This driver also supports a CDC-OBEX option. You will need a
|
|
user space OBEX server talking to /dev/ttyGS*, since the kernel
|
|
itself doesn't implement the OBEX protocol.
|
|
|
|
Say "y" to link the driver statically, or "m" to build a
|
|
dynamically linked module called "g_serial".
|
|
|
|
For more information, see Documentation/usb/gadget_serial.txt
|
|
which includes instructions and a "driver info file" needed to
|
|
make MS-Windows work with CDC ACM.
|
|
|
|
config USB_MIDI_GADGET
|
|
tristate "MIDI Gadget (EXPERIMENTAL)"
|
|
depends on SND && EXPERIMENTAL
|
|
select SND_RAWMIDI
|
|
help
|
|
The MIDI Gadget acts as a USB Audio device, with one MIDI
|
|
input and one MIDI output. These MIDI jacks appear as
|
|
a sound "card" in the ALSA sound system. Other MIDI
|
|
connections can then be made on the gadget system, using
|
|
ALSA's aconnect utility etc.
|
|
|
|
Say "y" to link the driver statically, or "m" to build a
|
|
dynamically linked module called "g_midi".
|
|
|
|
config USB_G_PRINTER
|
|
tristate "Printer Gadget"
|
|
help
|
|
The Printer Gadget channels data between the USB host and a
|
|
userspace program driving the print engine. The user space
|
|
program reads and writes the device file /dev/g_printer to
|
|
receive or send printer data. It can use ioctl calls to
|
|
the device file to get or set printer status.
|
|
|
|
Say "y" to link the driver statically, or "m" to build a
|
|
dynamically linked module called "g_printer".
|
|
|
|
For more information, see Documentation/usb/gadget_printer.txt
|
|
which includes sample code for accessing the device file.
|
|
|
|
config USB_CDC_COMPOSITE
|
|
tristate "CDC Composite Device (Ethernet and ACM)"
|
|
depends on NET
|
|
help
|
|
This driver provides two functions in one configuration:
|
|
a CDC Ethernet (ECM) link, and a CDC ACM (serial port) link.
|
|
|
|
This driver requires four bulk and two interrupt endpoints,
|
|
plus the ability to handle altsettings. Not all peripheral
|
|
controllers are that capable.
|
|
|
|
Say "y" to link the driver statically, or "m" to build a
|
|
dynamically linked module.
|
|
|
|
# put drivers that need isochronous transfer support (for audio
|
|
# or video class gadget drivers), or specific hardware, here.
|
|
|
|
# - none yet
|
|
|
|
endchoice
|
|
|
|
endif # USB_GADGET
|