[pwc] Change to VIDIOC_S

pwc

[pwc] Change to VIDIOC_S_FMT call.

To:
Subject:	[pwc] Change to VIDIOC_S_FMT call.
From:	Ivor Hewitt <>
Date:	Sun, 4 Sep 2005 21:28:37 +0100

Hi,

Trying to use the pwc driver with kopete, it seems that kopete attempts to 
determine the device capabilities by calling VIDIOC_S_FMT (since it uses the 
same codepath for V4L1 and V4L2 and TRY_FMT is new in V4L2).

Looking at the http://v4l2spec.bytesex.org/spec/vidioc-g-fmt.html doc seems to 
suggest that this behaviour is acceptable.

The attached patch basically causes VIDIOC_S_FMT to perform VIDIOC_TRY_FMT 
first and so supports this usage.

Regards,

-- 
Ivor Hewitt.

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