kernel_optimize_test/drivers/usb
Auke Kok 44c10138fd PCI: Change all drivers to use pci_device->revision
Instead of all drivers reading pci config space to get the revision
ID, they can now use the pci_device->revision member.

This exposes some issues where drivers where reading a word or a dword
for the revision number, and adding useless error-handling around the
read. Some drivers even just read it for no purpose of all.

In devices where the revision ID is being copied over and used in what
appears to be the equivalent of hotpath, I have left the copy code
and the cached copy as not to influence the driver's performance.

Compile tested with make all{yes,mod}config on x86_64 and i386.

Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com>
Acked-by: Dave Jones <davej@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-07-11 16:02:10 -07:00
..
atm USB: cxacru: ignore error trying to start ADSL in atm_start 2007-06-08 16:24:31 -07:00
class usblp: Don't let suspend to kill ->used 2007-06-08 16:24:29 -07:00
core USB: Fix up bogus bInterval values in endpoint descriptors 2007-06-08 16:24:31 -07:00
gadget USB: g_file_storage: call allow_signal() 2007-06-25 23:38:05 -07:00
host PCI: Change all drivers to use pci_device->revision 2007-07-11 16:02:10 -07:00
image header cleaning: don't include smp_lock.h when not used 2007-05-08 11:15:07 -07:00
misc potential compiler error, irqfunc caller sites update 2007-07-06 10:23:43 -07:00
mon header cleaning: don't include smp_lock.h when not used 2007-05-08 11:15:07 -07:00
serial USB: ftdio_sio: New IPlus device ID 2007-06-25 23:38:06 -07:00
storage USB: UNUSUAL_DEV: Sync up some reported devices from Ubuntu 2007-06-08 16:24:30 -07:00
Kconfig [S390] Kconfig: menus with depends on HAS_IOMEM. 2007-05-10 15:46:07 +02:00
Makefile Move USB network drivers to drivers/net/usb. 2007-05-09 21:31:55 -04:00
README
usb-skeleton.c USB: kill BKL in skeleton driver 2007-04-27 13:28:33 -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.