diff options
| author | Trent Piepho <xyzzy@speakeasy.org> | 2007-04-27 22:56:29 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@infradead.org> | 2007-05-09 10:13:09 -0300 |
| commit | bbe2486fe3bd6c7cffaf4123b7e86a55c209ed44 (patch) | |
| tree | 09520b7aaf5d491a0f954fc8f038d0806663ac5d /arch/ia64/kernel/kprobes.c | |
| parent | 9d3eb99b36c73843cd73f45dad8ca9dde1ce3888 (diff) | |
| download | linux-bbe2486fe3bd6c7cffaf4123b7e86a55c209ed44.tar.gz | |
V4L/DVB (5571): V4l1-compat: Make VIDIOCSPICT return errors in a useful way
Among other things, VIDIOCSPICT sets the pixel format. Some drivers don't support all formats, e.g. cx88 doesn't support the planar formats. The compat code that translates VIDIOCSPICT into V4L2 ioctls doesn't pass on any errors, so a userspace program doesn't know if it has selected an unsupported pixel format. VIDIOCSPICT sets both the memory capture and overlay formats, and it's possible that one will be set while the other will fail, e.g. cx88 doesn't even support overlay. Also, trying to set the overlay format will fail for non-root users. Signed-off-by: Trent Piepho <xyzzy@speakeasy.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
Diffstat (limited to 'arch/ia64/kernel/kprobes.c')
0 files changed, 0 insertions, 0 deletions