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| author | Bernie Thompson <bernie@plugable.com> | 2011-07-10 09:30:00 +0200 |
|---|---|---|
| committer | Paul Mundt <lethal@linux-sh.org> | 2011-07-13 09:53:30 +0200 |
| commit | b63d10130e68aa6480cc1b2483d7c5ce57a05481 (patch) | |
| tree | 18da62ff1f5a8797b75a91d9f3d74c6ae1ce71c7 /arch/powerpc/sysdev/ppc4xx_pci.c | |
| parent | carminefb: Fix module parameters permissions (diff) | |
| download | linux-b63d10130e68aa6480cc1b2483d7c5ce57a05481.tar.xz linux-b63d10130e68aa6480cc1b2483d7c5ce57a05481.zip | |
drivers/video/udlfb match class, subclass, and protocol
Match udlfb only against vendor-specific class (e.g. only DisplayLink
graphics, not composite standard audio class interfaces). This enables
compatibility with composite graphics+audio devices (e.g. HDMI).
Match udlfb only against compatible subclass 0 and protocol 0 chips.
DisplayLink's USB 3.0 generation chips increment these values
to signal that they have a incompatible protocol, preventing udlfb
from erroneously matching to hardware it does not support.
Tested to confirm proper behavior on both USB 2.0 and USB 3.0
generation devices.
Reported-by: Andrew Kephart <akephart@akephart.org>
Signed-off-by: Bernie Thompson <bernie@plugable.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Diffstat (limited to 'arch/powerpc/sysdev/ppc4xx_pci.c')
0 files changed, 0 insertions, 0 deletions