Re: [Workshop-2011] Media summit at the Kernel Summit - was: Fwd: Re: [Ksummit-2012-discuss] Organising Mini Summits within the Kernel Summit

On Wed, Jul 18, 2012 at 10:00 AM, Laurent Pinchart laurent.pinchart@ideasonboard.com wrote:

Another ambiguity for your list: what should a driver return in TRY_FMT/S_FMT if the requested format is not supported (possible behaviours include returning the currently selected format or a default format).

Whatever gets decided in terms of eliminating the ambiguity, we should definitely do a v4l2-compliance test for this. I've seen drivers in the past that return -EINVAL if the requested format is not supported (which resulted in various userland apps inventing their own workarounds over the years).

Devin