From mboxrd@z Thu Jan 1 00:00:00 1970 From: Aishwarya Pant Date: Fri, 26 Jan 2018 14:53:10 +0000 Subject: [PATCH 2/5] backlight: lp855x: document sysfs attributes Message-Id: <09cd01366bf3b5c3030ad25450b46a9a3bc8a747.1516978005.git.aishpant@gmail.com> List-Id: References: In-Reply-To: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: 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 , Milo Kim Cc: Julia Lawall Add documentation for sysfs interface of Texas Instruments lp855x backlight driver by reading code and looking through git commit logs. Signed-off-by: Aishwarya Pant --- .../ABI/testing/sysfs-class-backlight-lp855x | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) create mode 100644 Documentation/ABI/testing/sysfs-class-backlight-lp855x diff --git a/Documentation/ABI/testing/sysfs-class-backlight-lp855x b/Documentation/ABI/testing/sysfs-class-backlight-lp855x new file mode 100644 index 000000000000..5b9d38958875 --- /dev/null +++ b/Documentation/ABI/testing/sysfs-class-backlight-lp855x @@ -0,0 +1,19 @@ +sysfs interface for Texas Instruments lp855x backlight driver +------------------------------------------------------------ + +What: /sys/class/backlight//chip_id +Date: Mar, 2012 +KernelVersion: v3.10 +Contact: Milo Kim +Description: + (RO) Displays the lp8755x chip id. Possible values are: + lp8550, lp8551, lp8552, lp8553, lp8555, lp8556 or lp8557. + + +What: /sys/class/backlight//bl_ctl_mode +Date: Mar, 2012 +KernelVersion: v3.10 +Contact: Linux kernel mailing list +Description: + (RO) Displays whether the brightness is controlled by the pwm + input("pwm based) or the i2c register("register based"). -- 2.16.1