vdc_scsi_alloc
vd_scsi = vdc_scsi_alloc(cdb_len, sense_len, datain_len, dataout_len,
vd_scsi = vdc_scsi_alloc(cdb_len, sense_len, datain_len, dataout_len,
vd_scsi = vdc_scsi_alloc(cdb_len, sense_len, datain_len, dataout_len,
vd_scsi = vdc_scsi_alloc(cdb_len, sense_len, 0, 0, &vd_scsi_len);