Hi Hans, On Thu, Oct 05, 2023 at 01:08:25PM +0200, Hans Verkuil wrote: > On 03/10/2023 14:08, Sakari Ailus wrote: > > On VIDIOC_SUBDEV_[GS]_ROUTING, only return as many routes back to the user > > as there's room. Do not consider it an error if more routes existed. > > Simply inform the user there are more routes. > > I'm not convinced by this change. Can userspace do anything useful with only > a partially filled routes array? > > Just silently allowing bad data is asking for problems, IMHO. The idea is that the driver may return more routes than the user sets but the user may be interested in just one route, the one it enabled. Should the user space be required to obtain streams even if they are not of interest? -- Regards, Sakari Ailus
