2 Commits

Author	SHA1	Message	Date
Emmanuel Vadot	e26ef41f79	backlight: Update cached value when getting the brightness ... External events can cause the backlight level to change (AC adapter plug/unplug for example) so cache the value there too. PR: 257796 Sponsored by: Beckhoff Automation GmbH & Co. KG MFC after: 1 week	2022-05-25 16:50:25 +02:00
Emmanuel Vadot	675aae732d	Add backlight subsystem ... This is a simple subsystem that allow drivers to register as a backlight. Each backlight creates a device node under /dev/backlight/backlightX and an alias based on the name provided. Relnotes: yes Sponsored by: The FreeBSD Foundation Differential Revision: https://reviews.freebsd.org/D26250	2020-10-02 18:18:01 +00:00