usb.c: Fix devices using non-primary interface descriptor

A fair number of USB devices (keyboards in particular) use an
interface descriptor
other than the first available, making them non-functional currently.
To correct this, iterate through all available interface descriptors
until one with the correct class/subclass is found, then proceed to set the
configuration and setup the driver.

Tested on an ultimate hacking keyboard (UHK 60)

Signed-off-by: Matt DeVillier <matt.devillier@puri.sm>
1 file changed
tree: e68d8236c23f87de08e4bc6b10f33fc0b5e713f2
  1. .gitignore
  2. COPYING
  3. COPYING.LESSER
  4. Makefile
  5. README
  6. docs/
  7. scripts/
  8. src/
  9. vgasrc/