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Documentation: leds-lp5521,lp5523: update device attribute information

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Now, all legacy application interfaces are restored.
Each driver documentation is updated.

Cc: Pali Rohár <pali.rohar@gmail.com>
Signed-off-by: Milo Kim <milo.kim@ti.com>
Signed-off-by: Bryan Wu <cooloney@gmail.com>
This commit is contained in:
Milo Kim 2013-08-08 14:11:29 +09:00 committed by Bryan Wu
parent 2f733cad36
commit 863724a696
2 changed files with 39 additions and 2 deletions
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20
Documentation/leds/leds-lp5521.txt
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@ -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

21
Documentation/leds/leds-lp5523.txt
View File

@ -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.