From 863724a696e1a96b07c1bd0eb03cf08f10a714ba Mon Sep 17 00:00:00 2001 From: Milo Kim Date: Thu, 8 Aug 2013 14:11:29 +0900 Subject: Documentation: leds-lp5521,lp5523: update device attribute information MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Now, all legacy application interfaces are restored. Each driver documentation is updated. Cc: Pali Rohár Signed-off-by: Milo Kim Signed-off-by: Bryan Wu --- Documentation/leds/leds-lp5521.txt | 20 +++++++++++++++++++- Documentation/leds/leds-lp5523.txt | 21 ++++++++++++++++++++- 2 files changed, 39 insertions(+), 2 deletions(-) (limited to 'Documentation/leds') diff --git a/Documentation/leds/leds-lp5521.txt b/Documentation/leds/leds-lp5521.txt index 79e4c2e6e5e..d08d8c179f8 100644 --- a/Documentation/leds/leds-lp5521.txt +++ b/Documentation/leds/leds-lp5521.txt @@ -18,7 +18,25 @@ All three channels can be also controlled using the engine micro programs. More details of the instructions can be found from the public data sheet. LP5521 has the internal program memory for running various LED patterns. -For the details, please refer to 'firmware' section in leds-lp55xx.txt +There are two ways to run LED patterns. + +1) Legacy interface - enginex_mode and enginex_load + Control interface for the engines: + x is 1 .. 3 + enginex_mode : disabled, load, run + enginex_load : store program (visible only in engine load mode) + + Example (start to blink the channel 2 led): + cd /sys/class/leds/lp5521:channel2/device + echo "load" > engine3_mode + echo "037f4d0003ff6000" > engine3_load + echo "run" > engine3_mode + + To stop the engine: + echo "disabled" > engine3_mode + +2) Firmware interface - LP55xx common interface + For the details, please refer to 'firmware' section in leds-lp55xx.txt sysfs contains a selftest entry. The test communicates with the chip and checks that diff --git a/Documentation/leds/leds-lp5523.txt b/Documentation/leds/leds-lp5523.txt index 899fdad509f..5b3e91d4ac5 100644 --- a/Documentation/leds/leds-lp5523.txt +++ b/Documentation/leds/leds-lp5523.txt @@ -28,7 +28,26 @@ If both fields are NULL, 'lp5523' is used by default. /sys/class/leds/lp5523:channelN (N: 0 ~ 8) LP5523 has the internal program memory for running various LED patterns. -For the details, please refer to 'firmware' section in leds-lp55xx.txt +There are two ways to run LED patterns. + +1) Legacy interface - enginex_mode, enginex_load and enginex_leds + Control interface for the engines: + x is 1 .. 3 + enginex_mode : disabled, load, run + enginex_load : microcode load (visible only in load mode) + enginex_leds : led mux control (visible only in load mode) + + cd /sys/class/leds/lp5523:channel2/device + echo "load" > engine3_mode + echo "9d80400004ff05ff437f0000" > engine3_load + echo "111111111" > engine3_leds + echo "run" > engine3_mode + + To stop the engine: + echo "disabled" > engine3_mode + +2) Firmware interface - LP55xx common interface + For the details, please refer to 'firmware' section in leds-lp55xx.txt Selftest uses always the current from the platform data. -- cgit v1.2.3-70-g09d2