Mauro Carvalho Chehab wrote:
>>> Video device drivers should use the v4l2_fh pointer as their
>>> file->private_data.
...
>> The struct v4l2_fh is meant to be a part of the driver's own file handle
>> structure. It does not attempt to offer drivers anything directly but
>> generic functionality that depends on file handle specific data such as
>> V4L2 events. E.g.
>>
>> struct my_video_fh {
>> blah;
>> struct v4l2_fh fh;
>> blah;
>> };
An additional comment about this:
On your comment, you said that "Video device drivers should use the v4l2_fh
pointer as their file->private_data.".
This can be understood as:
file->private_data = v4l2_fh;
But a driver following your example, should do, instead:
file->private_data = my_video_fh;
Please, be sure that you document it clearly when you submit it again.
--
Cheers,
Mauro
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