This is a introduction for flashlight chip OCP81375

[Scope]
- Two channels for two LEDs

[Hardware Interface]
- I2C
	* For general control
	* Slave address 0x63


[Limit]
- Channel couple:
	* Torch/Strobe

- Channel decouple:
	* Enable/Disable
	* Brightness level

- Torch Mode
	* Min currnet: 3.90 mA
	* Max current: 499.2 mA
    * Current step: 3.90 mA

- Strobe Mode
	* Min currnet: 15.63 mA
	* Max current: 2000.64 mA
    * Current step: 15.63 mA
	* Min protected timeout: 40 ms
	* Max protected timeout: 1600 ms