dmesg | tail
[  849.272211] scsi9 : usb-storage 1-1:1.0
[  850.293670] scsi 9:0:0:0: CD-ROM            HUAWEI   Mass Storage     2.31 PQ: 0 ANSI: 2
[  850.294202] scsi 9:0:0:1: Direct-Access     HUAWEI   TF CARD Storage  2.31 PQ: 0 ANSI: 2
[  850.297938] sr1: scsi-1 drive
[  850.298176] sr 9:0:0:0: Attached scsi CD-ROM sr1
[  850.298351] sr 9:0:0:0: Attached scsi generic sg2 type 5
[  850.298653] sd 9:0:0:1: Attached scsi generic sg3 type 0
[  850.305557] sd 9:0:0:1: [sdb] Attached SCSI removable disk
[  850.595423] ISO 9660 Extensions: Microsoft Joliet Level 1
[  850.595790] ISOFS: changing to secondary root