tree 84491635fd8524a2c46fcbc051fefdcbd48ba39b
parent 3b180bff4c606b2596c40b26f85af6bc7d8cc50b
author Jiri Kosina <jkosina@suse.cz> 1178099742 +0200
committer Jiri Kosina <jkosina@suse.cz> 1178671971 +0200

USB HID: report descriptor of Cypress USB barcode readers needs fixup

Certain versions of Cypress USB barcode readers (this problem is known to
happen at least with PIDs 0xde61 and 0xde64) have report descriptor which
has swapped usage min and usage max tag. This results in HID parser failing
for report descriptor of these devices, as it (wrongly) requires allocating
more usages than HID_MAX_USAGES.

Solve this by walking through the report descriptor for such devices, and swap
the usage min and usage max items (and their values) to be in proper order.

Reported-by: Bret Towe <magnade@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>