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Date:      Wed, 1 Apr 2015 16:27:05 +0200 (CEST)
From:      Damian Weber <dweber@htwsaar.de>
To:        Hans Petter Selasky <hps@selasky.org>, Kurt Jaeger <lists@opsec.eu>
Cc:        freebsd-current@freebsd.org
Subject:   Re: umass, Verbatim STORE N GO drive, CAM status 0x50
Message-ID:  <alpine.BSF.2.11.1504011615500.9508@magritte.htwsaar.de>
In-Reply-To: <5516BC51.6080108@selasky.org>
References:  <alpine.BSF.2.11.1503281506040.42072@magritte.htwsaar.de> <5516BC51.6080108@selasky.org>

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> 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 */

+       USB_QUIRK(VERBATIM, STORENGO, 0x0000, 0xffff, UQ_MSC_FORCE_WIRE_BBB,
+           UQ_MSC_FORCE_PROTO_SCSI, UQ_MSC_IGNORE_RESIDUE,
+           UQ_MSC_NO_SYNC_CACHE),


result:
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

   Damian




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