Re: umass, Verbatim STORE N GO drive, CAM status 0x50

From: Damian Weber <>
Date: Wed, 1 Apr 2015 16:27:05 +0200 (CEST)
> Try adding some quirks:
> usbconfig dump_quirk_names | grep MSC
> --HPS

Dear Hans Petter and Kurt, thank you for your great advice,
I successfully attached my Verbatim USB drive

the magic lines are

in ./dev/usb/usbdevs :

+vendor VERBATIM        0x18a5  Verbatim
+product VERBATIM STORENGO      0x0243  Verbatim Store N Go

in ./dev/usb/quirk/usb_quirk.c

/* copied from SANDISK, SDCZ2_128 */

+           UQ_MSC_NO_SYNC_CACHE),

a) can mount it (mount_msdosfs)
b) can read/write files (sha1-checksums verified)

two questions remain

1) can the dmesg error messages be dealt with? ILLEGAL REQUEST asc:20,0

ugen2.2: <Verbatim> at usbus2
umass0: <Verbatim STORE N GO, class 0/0, rev 2.10/1.00, addr 2> on usbus2
umass0:  SCSI over Bulk-Only; quirks = 0x4080
umass0:4:0: Attached to scbus4
(probe0:umass-sim0:0:0:0): REPORT LUNS. CDB: a0 00 00 00 00 00 00 00 00 10 00 00 
(probe0:umass-sim0:0:0:0): CAM status: SCSI Status Error
(probe0:umass-sim0:0:0:0): SCSI status: Check Condition
(probe0:umass-sim0:0:0:0): SCSI sense: ILLEGAL REQUEST asc:20,0 (Invalid command operation code)
(probe0:umass-sim0:0:0:0): Error 22, Unretryable error
da0 at umass-sim0 bus 0 scbus4 target 0 lun 0
da0: <Verbatim STORE N GO > Removable Direct Access SPC-4 SCSI device
da0: 40.000MB/s transfers
da0: 14909MB (30535401 512 byte sectors: 255H 63S/T 1900C)
da0: quirks=0x2<NO_6_BYTE>

2) is it possible to modify usb_quirk.c without 
   going through the whole make-kernel dance?

Best wishes

Received on Wed Apr 01 2015 - 12:27:14 UTC

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