On Tue, Feb 06, 2018 at 01:10:26PM +0530, Aishwarya Pant wrote: > Add documentation for sysfs interface of adp5520/adp5501 analog devices > backlight driver by reading code and looking through git commit logs. > > Signed-off-by: Aishwarya Pant <aishpant@xxxxxxxxx> > Acked-by: Michael Hennerich <michael.hennerich@xxxxxxxxxx> Acked-by: Daniel Thompson <daniel.thompson@xxxxxxxxxx> > --- > .../ABI/testing/sysfs-class-backlight-adp5520 | 31 ++++++++++++++++++++++ > 1 file changed, 31 insertions(+) > create mode 100644 Documentation/ABI/testing/sysfs-class-backlight-adp5520 > > diff --git a/Documentation/ABI/testing/sysfs-class-backlight-adp5520 b/Documentation/ABI/testing/sysfs-class-backlight-adp5520 > new file mode 100644 > index 000000000000..34b6ebafa210 > --- /dev/null > +++ b/Documentation/ABI/testing/sysfs-class-backlight-adp5520 > @@ -0,0 +1,31 @@ > +sysfs interface for analog devices adp5520(01) backlight driver > +--------------------------------------------------------------- > + > +The backlight brightness control operates at three different levels for the > +adp5520 and adp5501 devices: daylight (level 1), office (level 2) and dark > +(level 3). By default the brightness operates at the daylight brightness level. > + > +What: /sys/class/backlight/<backlight>/daylight_max > +What: /sys/class/backlight/<backlight>/office_max > +What: /sys/class/backlight/<backlight>/dark_max > +Date: Sep, 2009 > +KernelVersion: v2.6.32 > +Contact: Michael Hennerich <michael.hennerich@xxxxxxxxxx> > +Description: > + (RW) Maximum current setting for the backlight when brightness > + is at one of the three levels (daylight, office or dark). This > + is an input code between 0 and 127, which is transformed to a > + value between 0 mA and 30 mA using linear or non-linear > + algorithms. > + > +What: /sys/class/backlight/<backlight>/daylight_dim > +What: /sys/class/backlight/<backlight>/office_dim > +What: /sys/class/backlight/<backlight>/dark_dim > +Date: Sep, 2009 > +KernelVersion: v2.6.32 > +Contact: Michael Hennerich <michael.hennerich@xxxxxxxxxx> > +Description: > + (RW) Dim current setting for the backlight when brightness is at > + one of the three levels (daylight, office or dark). This is an > + input code between 0 and 127, which is transformed to a value > + between 0 mA and 30 mA using linear or non-linear algorithms. > -- > 2.16.1 > _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/dri-devel
