Print more detailed v4l parse error messages
authorLaurent Pinchart <laurent.pinchart@ideasonboard.com>
Thu, 26 Sep 2013 19:57:44 +0000 (21:57 +0200)
committerLaurent Pinchart <laurent.pinchart@ideasonboard.com>
Thu, 26 Sep 2013 21:49:27 +0000 (23:49 +0200)
The following errors usually resulted in the same 'Unable to parse
format' message:

- syntax error in format description
- the requested pixel code isn't supported

Add more detailed error messages to give the user a clue what is going
wrong.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>

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