linux/drivers/usb
Martin Fuzzey 1dae423dd9 USB: introduce unmap_urb_setup_for_dma()
Split unmap_urb_for_dma() to allow just the setup buffer
to be unmapped. This allows HCDs to use PIO for the setup
buffer if it is not suitable for DMA.

Signed-off-by: Martin Fuzzey <mfuzzey@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-10-22 10:22:03 -07:00
..
atm usb: change to new flag variable 2010-10-22 10:21:56 -07:00
c67x00 USB: convert usb_hcd bitfields into atomic flags 2010-08-10 14:35:37 -07:00
class USB: cdc-acm: fix code indentation 2010-10-22 10:21:57 -07:00
core USB: introduce unmap_urb_setup_for_dma() 2010-10-22 10:22:03 -07:00
early echi-dbgp: Add kernel debugger support for the usb debug port 2010-05-20 21:04:31 -05:00
gadget usb: langwell_udc: cancel pending requests when controller is suspended. 2010-10-22 10:22:00 -07:00
host USB: imx21-hcd: Fix isochronous endpoint idle 2010-10-22 10:22:02 -07:00
image USB: BKL removal: mdc800 2010-03-02 14:54:27 -08:00
misc USB: usbtest - ensure correct isoc data length 2010-10-22 10:22:01 -07:00
mon USB: resizing usbmon binary interface buffer causes protection faults 2010-08-10 14:35:41 -07:00
musb usb: musb: blackfin: call gpio_free() on error path in musb_platform_init() 2010-10-22 10:21:59 -07:00
otg USB OTG Langwell: Update OTG Kconfig and driver version. 2010-10-22 10:21:33 -07:00
serial USB: add PID for FTDI based OpenDCC hardware 2010-10-22 10:21:57 -07:00
storage usb: change to new flag variable 2010-10-22 10:21:56 -07:00
wusbcore usb: change to new flag variable 2010-10-22 10:21:56 -07:00
Kconfig USB: add USB EHCI support for MPC5121 SoC 2010-10-22 10:21:58 -07:00
Makefile USB: drivers/usb/Makefile: conditionally descend to 'early' 2010-08-10 14:35:38 -07:00
README
usb-skeleton.c USB: usb-skeleton: Remove unnecessary casts of private_data 2010-08-10 14:35:39 -07:00

To understand all the Linux-USB framework, you'll use these resources:

    * This source code.  This is necessarily an evolving work, and
      includes kerneldoc that should help you get a current overview.
      ("make pdfdocs", and then look at "usb.pdf" for host side and
      "gadget.pdf" for peripheral side.)  Also, Documentation/usb has
      more information.

    * The USB 2.0 specification (from www.usb.org), with supplements
      such as those for USB OTG and the various device classes.
      The USB specification has a good overview chapter, and USB
      peripherals conform to the widely known "Chapter 9".

    * Chip specifications for USB controllers.  Examples include
      host controllers (on PCs, servers, and more); peripheral
      controllers (in devices with Linux firmware, like printers or
      cell phones); and hard-wired peripherals like Ethernet adapters.

    * Specifications for other protocols implemented by USB peripheral
      functions.  Some are vendor-specific; others are vendor-neutral
      but just standardized outside of the www.usb.org team.

Here is a list of what each subdirectory here is, and what is contained in
them.

core/		- This is for the core USB host code, including the
		  usbfs files and the hub class driver ("khubd").

host/		- This is for USB host controller drivers.  This
		  includes UHCI, OHCI, EHCI, and others that might
		  be used with more specialized "embedded" systems.

gadget/		- This is for USB peripheral controller drivers and
		  the various gadget drivers which talk to them.


Individual USB driver directories.  A new driver should be added to the
first subdirectory in the list below that it fits into.

image/		- This is for still image drivers, like scanners or
		  digital cameras.
../input/	- This is for any driver that uses the input subsystem,
		  like keyboard, mice, touchscreens, tablets, etc.
../media/	- This is for multimedia drivers, like video cameras,
		  radios, and any other drivers that talk to the v4l
		  subsystem.
../net/		- This is for network drivers.
serial/		- This is for USB to serial drivers.
storage/	- This is for USB mass-storage drivers.
class/		- This is for all USB device drivers that do not fit
		  into any of the above categories, and work for a range
		  of USB Class specified devices. 
misc/		- This is for all USB device drivers that do not fit
		  into any of the above categories.