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6 1.5 A Synchronous Boost LED Flash Driver w/ High-Side Current Source
16 There are 3 functions in LM3556, Flash, Torch and Indicator.
18 Flash Mode
21 In Flash Mode, the LED current source(LED) provides 16 target current levels
22 from 93.75 mA to 1500 mA.The Flash currents are adjusted via the CURRENT
23 CONTROL REGISTER(0x09).Flash mode is activated by the ENABLE REGISTER(0x0A),
26 LM3556 Flash can be controlled through sys/class/leds/flash/brightness file
31 Flash Example:
35 #echo 0 > sys/class/leds/flash/brightness
39 #echo 1 > sys/class/leds/flash/brightness
45 #echo 16 > sys/class/leds/flash/brightness