SMS_PCTRL_CURRENT
error = scsipi_mode_sense(st->sc_periph, 0, SMS_PCTRL_CURRENT,
page = SMS_PCTRL_CURRENT | 0xf;
if (page == (SMS_PCTRL_CURRENT | 0xf)) {
page = SMS_PCTRL_CURRENT | 0x10;
page = SMS_PCTRL_CURRENT | 0x10;