On Tue, Dec 17, 2024 at 04:24:27PM +0100, Ricardo Ribalda wrote: > Hi Rob > > On Tue, 17 Dec 2024 at 16:02, Rob Herring <robh@xxxxxxxxxx> wrote: > > > > On Thu, Dec 12, 2024 at 09:44:37PM +0000, Ricardo Ribalda wrote: > > > For some devices like cameras the system needs to know where they are > > > mounted. > > > > Why do you need this and why only this property and not the dozens > > others ACPI has? > > Userspace needs that information to correctly show it in the UI. Eg; > > - User facing camera needs to be mirrored during preview. > - The user facing camera is selected by default during videoconferences > - The world facing camera is selected by default when taking a photo > - User facing camera have different parameter defaults than world facing. We already have "orientation" defined for this purpose. > > Right now, the only camera driver that expose the ACPI location > information is the IPU from intel > https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/drivers/media/pci/intel/ipu-bridge.c#n258 > > And they are only using the panel. > > If we need more information we can consider adding more parameters in > the future.
