SCSI_CMD_LUN_SHIFT
ss->byte2 = lun << SCSI_CMD_LUN_SHIFT;
ss->byte2 = periph->periph_lun << SCSI_CMD_LUN_SHIFT;
ss->byte2 = periph->periph_lun << SCSI_CMD_LUN_SHIFT;
((periph->periph_lun << SCSI_CMD_LUN_SHIFT) &
SCSI_CMD_LUN_SHIFT;
sense_cmd.byte2 = periph->periph_lun << SCSI_CMD_LUN_SHIFT;