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[v2,1/3] backlight: lm3639: document sysfs attributes

Message ID aa8c36f78ba1228ac7f8d377797b2f1b11574b3b.1517902411.git.aishpant@gmail.com (mailing list archive)
State New, archived
Headers show

Commit Message

Aishwarya Pant Feb. 6, 2018, 7:39 a.m. UTC 
Add documentation for sysfs interfaces of Texas Instruments lm3639
backlight + flash led driver chip by looking through git commits and
reading code.

Signed-off-by: Aishwarya Pant <aishpant@gmail.com>
Acked-by: Daniel Thompson <daniel.thompson@linaro.org>
---
Changes in v2:
- Update contact information

 Documentation/ABI/testing/sysfs-class-backlight-lm3639 | 11 +++++++++++
 1 file changed, 11 insertions(+)
 create mode 100644 Documentation/ABI/testing/sysfs-class-backlight-lm3639
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Patch

diff --git a/Documentation/ABI/testing/sysfs-class-backlight-lm3639 b/Documentation/ABI/testing/sysfs-class-backlight-lm3639
new file mode 100644
index 000000000000..f7e92a82ea25
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-class-backlight-lm3639
@@ -0,0 +1,11 @@ 
+sysfs interface for Texas Instruments lm3639 backlight + flash led driver chip
+------------------------------------------------------------------------------
+
+What:		/sys/class/backlight/<backlight>/bled_mode
+Date:		Oct, 2012
+KernelVersion:	v3.10
+Contact:	dri-devel@lists.freedesktop.org
+Description:
+		(WO) Write to the backlight mapping mode. The backlight current
+		can be mapped for either exponential (value "0") or linear
+		mapping modes (default).