REG_CHIP_MODE
ret = si2165_writereg8(state, REG_CHIP_MODE, state->config.chip_mode);
ret = si2165_readreg8(state, REG_CHIP_MODE, &val);
ret = si2165_writereg8(state, REG_CHIP_MODE, SI2165_MODE_OFF);
ret = si2165_writereg8(state, REG_CHIP_MODE, state->config.chip_mode);
ret = si2165_readreg8(state, REG_CHIP_MODE, &val);
ret = si2165_writereg8(state, REG_CHIP_MODE, SI2165_MODE_OFF);