SD_SWITCH_GROUP1
err = mmc_sd_switch(periph, ccb, SD_SWITCH_MODE_SET, SD_SWITCH_GROUP1, value, switch_res);
SD_SWITCH_GROUP1, SD_SWITCH_NOCHANGE, res);
SD_SWITCH_GROUP1, SD_SWITCH_NOCHANGE,
err = mmc_sd_switch(sc, SD_SWITCH_MODE_SET, SD_SWITCH_GROUP1,