On Wed, Oct 2, 2019 at 9:46 AM Jonathan Corbet <cor...@lwn.net> wrote: > > On Tue, 1 Oct 2019 10:09:46 -0600 > Mat King <math...@google.com> wrote: > > > I have been looking into adding Linux support for electronic privacy > > screens which is a feature on some new laptops which is built into the > > display and allows users to turn it on instead of needing to use a > > physical privacy filter. In discussions with my colleagues the idea of > > using either /sys/class/backlight or /sys/class/leds but this new > > feature does not seem to quite fit into either of those classes. > > FWIW, it seems that you're not alone in this; 5.4 got some support for > such screens if I understand things correctly: > > > https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=110ea1d833ad > > jon
Thanks Jon, I had seen that as well and I should have mentioned it in my original post. That patch exposes the privacy screen using /proc/acpi which does not seem ideal when adding more privacy screen support into the kernel.
