Fix USB MSC more than 2 LUNs support

[Igorbunow]

Fix support more than 2 LUNs into USB MSC device

Now it successfully recognized 4 LUNS:

kernel: [ 1969.997185] scsi 8:0:0:0: Direct-Access     STM      MicroSD Device   0.01 PQ: 0 ANSI: 2
kernel: [ 1969.997830] scsi 8:0:0:1: Direct-Access     STM      EEPROM           0.01 PQ: 0 ANSI: 2
kernel: [ 1969.998390] scsi 8:0:0:2: Direct-Access     STM      System           0.01 PQ: 0 ANSI: 2
kernel: [ 1969.999059] scsi 8:0:0:3: Direct-Access     STM      Test             0.01 PQ: 0 ANSI: 2
kernel: [ 1969.999505] sd 8:0:0:0: Attached scsi generic sg7 type 0

[ALABSTM]

Hi @Igorbunow,

Thank you for this pull-request. We will get back to you with a feedback as soon as possible. Please excuse the delay it may take us sometimes to reply. Thank you for your comprehension.

With regards,

[ALABSTM]

Hi @Igorbunow,

Thank you for this interesting proposal. It has been forwarded to our development teams. We will keep you informed.

With regards,

[ALABSTM]

ST Internal Reference: 126925

[ALABSTM]

Hi @Igorbunow,

Just to let you know this point has finally been addressed in the frame of version 1.18.2 that has just been released.

Indeed, this new firmware version supports version 2.11.5 of the USB Device library, which, in turn, now supports multiple LUNs, as you can see, for instance, from this new structure member.

Thank you for your patience and thank you again for having reported.

With regards,