TRF7970A_SPECIAL_FCN_REG1
ret = trf7970a_write(trf, TRF7970A_SPECIAL_FCN_REG1, 0);
ret = trf7970a_write(trf, TRF7970A_SPECIAL_FCN_REG1,
TRF7970A_SPECIAL_FCN_REG1,