si2165_writereg32
ret = si2165_writereg32(state, REG_LOCK_TIMEOUT, 0x007a1200);
ret = si2165_writereg32(state, REG_ADDR_JUMP, 0xf4000000);
ret = si2165_writereg32(state, REG_GP_REG0_LSB, 0x00000000);
ret = si2165_writereg32(state, REG_ADDR_JUMP, 0xf4000000);
return si2165_writereg32(state, REG_OVERSAMP, reg_value);
return si2165_writereg32(state, REG_IF_FREQ_SHIFT, reg_value);