V4L-2 support in FreeBSD
frtzkatz at yahoo.com
Sun Sep 28 22:59:30 UTC 2008
--- On Tue, 9/23/08, Hans Petter Selasky <hselasky(at)c2i(dot)net> wrote:
> Maybe you will find the following file useful:
Thanks!, Yes, very useful.
Can you point me at any drivers or user applications
that include and use this file?
Are there any plans to check it into the
tree for FreeBSD-8?
1) V4L2 has divided the info contained in this file
into two: videodev.h which contains the obsolete V4L1
definitions & videodev2.h
when I attempt to link a V4L2 application using it,
I get compiler errors and am forced to edit the source
files to get them to compile.
Without V4L-1 structs and ioctl definitions, many
older applications won't compile.
2) The "#define V4L2_STD_PAL_NC" is "#define V4L2_STD_PAL_Nc"
in V4L2. (Just because Penguins do something silly like
putting a lower case letter in a define doesn't mean we
should do it too -- but it *IS* their standard).
> Regarding porting, there is not much you need to do. Simply
> make sure that you handle the IOCTLs directly in the video driver.
Yes, "piece of cake!" :-)
-- Fritz Katz.
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