airspy_ctrl_msg
ret = airspy_ctrl_msg(s, CMD_RECEIVER_MODE, 1, 0, NULL, 0);
airspy_ctrl_msg(s, CMD_RECEIVER_MODE, 0, 0, NULL, 0);
ret = airspy_ctrl_msg(s, CMD_SET_FREQ, 0, 0, buf, 4);
ret = airspy_ctrl_msg(s, CMD_SET_LNA_AGC, 0, s->lna_gain_auto->val,
ret = airspy_ctrl_msg(s, CMD_SET_LNA_GAIN, 0, s->lna_gain->val,
ret = airspy_ctrl_msg(s, CMD_SET_MIXER_AGC, 0, s->mixer_gain_auto->val,
ret = airspy_ctrl_msg(s, CMD_SET_MIXER_GAIN, 0,
ret = airspy_ctrl_msg(s, CMD_SET_VGA_GAIN, 0, s->if_gain->val,
ret = airspy_ctrl_msg(s, CMD_BOARD_ID_READ, 0, 0, &u8tmp, 1);
ret = airspy_ctrl_msg(s, CMD_VERSION_STRING_READ, 0, 0,