AS3668_CURR_MODE_REG
err = i2c_smbus_write_byte_data(client, AS3668_CURR_MODE_REG,
i2c_smbus_write_byte_data(client, AS3668_CURR_MODE_REG, 0);
ret = i2c_smbus_read_byte_data(led->chip->client, AS3668_CURR_MODE_REG);
return i2c_smbus_write_byte_data(led->chip->client, AS3668_CURR_MODE_REG, channel_modes);