On Wed, 23 Jun 2021 12:17:40 +0200 Werner Sembach <wse@xxxxxxxxxxxxxxxxxxx> wrote: > Am 23.06.21 um 09:32 schrieb Pekka Paalanen: > > On Tue, 22 Jun 2021 11:48:52 +0000 > > Simon Ser <contact@xxxxxxxxxxx> wrote: > > > >> On Tuesday, June 22nd, 2021 at 11:50, Werner Sembach <wse@xxxxxxxxxxxxxxxxxxx> wrote: > >> > >>> Unknown is when no monitor is connected or is when the > >>> connector/monitor is disabled. > >> I think the other connector props (link-status, non-desktop, etc) don't > >> have a special "unset" value, and instead the value is set to a random > >> enum entry. User-space should ignore the prop on these disconnected > >> connectors anyways. > > That sounds fine to me. > > Currently the only case for "not applicable" is when the monitor is > disconnected, but sicne the properties are so interdependent, there > might be a case in the future where e.g. a color format that has no > differentiation between full and limited arises. When there is no > special unset/not applicable option, the userspace has to know > exactly when an option is valid or not, possible requiring additional > logic. > > Setting a "not applicable" value allows userspace to be more dumb, > without much hassle on the kernelspace side. That's a good point too. So "not applicable" would be a value, but "unknown" would not be. Thanks, pq
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