Modules: USB generic driver

Move the usb_complete_callback() compatibility wrapper out of the
kernel tree.
Signed-off-by: NClemens Ladisch <clemens@ladisch.de>

Modules: USB generic driver

Move the usb_pipe_needs_resubmit() compatibility wrapper out of the
kernel tree.
Signed-off-by: NClemens Ladisch <clemens@ladisch.de>

USB generic driver
Make the quirk type an enum instead of a #defined integer, and use a
table for the quirk constructor functions instead of a big switch
statement.
Signed-off-by: NClemens Ladisch <clemens@ladisch.de>

USB generic driver
Add support for Miditech Midistart and MidiStudio keyboards (another
case of devices using the standard protocol but having no descriptors).
Signed-off-by: NClemens Ladisch <clemens@ladisch.de>

USB generic driver
Rename the protocol used by the MOTU FastLane to 'raw' because it might
be useful with other devices, and there are other MOTU interfaces that
do not use this protocol.
Signed-off-by: NClemens Ladisch <clemens@ladisch.de>

USB generic driver
Cache the decoded values of idVendor/idProduct to get rid of most of
those ugly le16_to_cpu() calls.
Signed-off-by: NClemens Ladisch <clemens@ladisch.de>

USB generic driver
Move all data related to audio control interfaces into a separate struct
local to usbmixer.c.
Signed-off-by: NClemens Ladisch <clemens@ladisch.de>

USB generic driver,USB USX2Y
This patch removes the superfluous driver parameter from the
disconnect functions.
Signed-off-by: NClemens Ladisch <clemens@ladisch.de>

Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!