On Tue, 2013-09-17 at 17:23 +0800, Aaron Lu wrote: > Introduce a new API for modules to query if a specific type of backlight > device has been registered. This is useful for some backlight device > provider module(e.g. ACPI video) to know if a native control > interface(e.g. the interface created by i915) is available and then do > things accordingly(e.g. avoid register its own on Win8 systems). > > Signed-off-by: Aaron Lu <aaron.lu@xxxxxxxxx> Tested-by: Igor Gnatenko <i.gnatenko.brain@xxxxxxxxx> > --- > drivers/video/backlight/backlight.c | 31 +++++++++++++++++++++++++++++++ > include/linux/backlight.h | 4 ++++ > 2 files changed, 35 insertions(+) -- Igor Gnatenko Fedora release 20 (Heisenbug) Linux 3.12.0-0.rc1.git0.1.fc20.x86_64 -- To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
