From mboxrd@z Thu Jan 1 00:00:00 1970 From: Michael Hennerich Date: Thu, 01 Feb 2018 16:28:28 +0000 Subject: Re: [PATCH 5/5] backlight: adp8860: document sysfs attributes Message-Id: List-Id: References: In-Reply-To: MIME-Version: 1.0 Content-Type: text/plain; charset="windows-1252" Content-Transfer-Encoding: quoted-printable To: Aishwarya Pant , Lee Jones , Daniel Thompson , Jingoo Han , Bartlomiej Zolnierkiewicz , dri-devel@lists.freedesktop.org, linux-fbdev@vger.kernel.org, linux-kernel@vger.kernel.org, Jonathan Corbet , Greg KH Cc: Julia Lawall On 26.01.2018 15:55, Aishwarya Pant wrote: > Add documentation for sysfs interface of adp8860 series backlight > devices by reading through code and git commits. >=20 > Signed-off-by: Aishwarya Pant Acked-by: Michael Hennerich > --- > .../ABI/testing/sysfs-class-backlight-adp8860 | 54 +++++++++++++++= +++++++ > 1 file changed, 54 insertions(+) > create mode 100644 Documentation/ABI/testing/sysfs-class-backlight-adp8= 860 >=20 > diff --git a/Documentation/ABI/testing/sysfs-class-backlight-adp8860 b/Do= cumentation/ABI/testing/sysfs-class-backlight-adp8860 > new file mode 100644 > index 000000000000..54d61c788b1b > --- /dev/null > +++ b/Documentation/ABI/testing/sysfs-class-backlight-adp8860 > @@ -0,0 +1,54 @@ > +sysfs interface for analog devices adp8860 backlight driver > +----------------------------------------------------------- > + > +The backlight brightness control operates at three different levels for = the > +adp8860, adp8861 and adp8863 devices: daylight (level 1), office (level = 2) and > +dark (level 3). By default the brightness operates at the daylight brigh= tness > +level. > + > +What: /sys/class/backlight//ambient_light_level > +Date: Apr, 2010 > +KernelVersion: v2.6.35 > +Contact: Michael Hennerich > +Description: > + (RO) 13-bit conversion value for the first light sensor=E2=80=94high > + byte (Bit 12 to Bit 8). The value is updated every 80 ms (when > + the light sensor is enabled). > + > + > +What: /sys/class/backlight//ambient_light_zone > +Date: Apr, 2010 > +KernelVersion: v2.6.35 > +Contact: Michael Hennerich > +Description: > + (RW) Read or write the specific level at which the backlight > + operates. Value "0" enables automatic ambient light sensing, and > + values "1", "2" or "3" set the control to daylight, office or > + dark respectively. > + > + > +What: /sys/class/backlight//l1_daylight_max > +What: /sys/class/backlight//l2_office_max > +What: /sys/class/backlight//l3_dark_max > +Date: Apr, 2010 > +KernelVersion: v2.6.35 > +Contact: Michael Hennerich > +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//l1_daylight_dim > +What: /sys/class/backlight//l2_office_dim > +What: /sys/class/backlight//l3_dark_dim > +Date: Apr, 2010 > +KernelVersion: v2.6.35 > +Contact: Michael Hennerich > +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. >=20