Documentation/leds/leds-lp55xx.rst

8 -----------
14   Device attributes for user-space interface
47 To support device specific configurations, special structure
50   - Maximum number of channels
51   - Reset command, chip enable command
52   - Chip specific initialization
53   - Brightness control register access
54   - Setting LED output current
55   - Program memory address access for running patterns
56   - Additional device specific attributes
63 This pattern data is saved as a file in the user-land or
88 In more details, please refer to 'leds-lp5523.txt'.
92 	echo 1 > /sys/bus/i2c/devices/xxxx/select_engine
96 	echo 1 > /sys/bus/i2c/devices/xxxx/run_engine
102 	echo 3 > /sys/bus/i2c/devices/xxxx/select_engine
106 	echo "000001100" > /sys/bus/i2c/devices/xxxx/engine3_leds
107 	echo 1 > /sys/bus/i2c/devices/xxxx/run_engine
125 	echo 2 > /sys/bus/i2c/devices/xxxx/select_engine
129 	echo "111111111" > /sys/bus/i2c/devices/xxxx/engine2_leds
130 	echo 1 > /sys/bus/i2c/devices/xxxx/run_engine
138 However pattern data is specific.
142 	echo 1 > /sys/bus/i2c/devices/xxxx/select_engine
146 	echo 1 > /sys/bus/i2c/devices/xxxx/run_engine
150 	echo 2 > /sys/bus/i2c/devices/xxxx/select_engine
156 	echo 3 > /sys/bus/i2c/devices/xxxx/select_engine
168 But each device has own specific register addresses for commands.
177 	Chip specific commands for loading and updating program memory.
219   echo 1 > /sys/bus/i2c/devices/xxxx/led_pattern    # red blinking LED pattern
220   echo 2 > /sys/bus/i2c/devices/xxxx/led_pattern    # blue LED always on
224   echo 0 > /sys/bus/i2c/devices/xxxx/led_pattern