Volodymyr Kostyrko wrote:
> 21.08.2010 21:29, Hans Petter Selasky wrote:
> >>> You can use usbconfig to add quirks on the fly. See:
> >>>
> >>> usbconfig -h
> >>>
> >>> And:
> >>>
> >>> man usbconfig
> >>
> >> Tried that, but it doesn't work for me or I'm messing things up...
> >>
> >> usbconfig -d 3.3 add_quirk UQ_MSC_NO_SYNC_CACHE
> >>
> >> And errors continue to show up. The man page also is kinda short on data.
> >
> > After setting the quirk, you need to reset or re-attach the USB device.
> 
> Not a good behavior for me. What if I need to boot from one? Most FS 
> don't like been pushed off device.
> 
> But this doesn't work too.
> 
> usbconfig -d 3.3 add_quirk UQ_MSC_NO_TEST_UNIT_READY
> usbconfig -d 3.3 reset
> 
> Gives me:
> 
> Aug 21 22:46:14 limbo kernel: umass1: at uhub3, port 5, addr 3 
> (disconnected)
> Aug 21 22:46:14 limbo kernel: (da4:umass-sim1:1:0:0): lost device
> Aug 21 22:46:14 limbo kernel: (da4:umass-sim1:1:0:0): removing device entry
> Aug 21 22:46:15 limbo root: Unknown USB device: vendor 0x058f product 
> 0x6387 bus uhub3
> Aug 21 22:46:15 limbo kernel: umass1: <JetFlash Mass Storage Device, 
> class 0/0, rev 2.00/1.00, addr 3> on usbus3
> Aug 21 22:46:15 limbo kernel: umass1:  SCSI over Bulk-Only; quirks = 0x0100
> 
> Here, quirks field doesn't change when I add more quirks.
> 
> Aug 21 22:46:16 limbo kernel: umass1:2:1:-1: Attached to scbus2
> Aug 21 22:46:16 limbo kernel: (probe0:umass-sim1:1:0:0): TEST UNIT 
> READY. CDB: 0 0 0 0 0 0
> Aug 21 22:46:16 limbo kernel: (probe0:umass-sim1:1:0:0): CAM status: 
> SCSI Status Error
> Aug 21 22:46:16 limbo kernel: (probe0:umass-sim1:1:0:0): SCSI status: 
> Check Condition
> Aug 21 22:46:16 limbo kernel: (probe0:umass-sim1:1:0:0): SCSI sense: 
> UNIT ATTENTION asc:28,0 (Not ready to ready change, medium may have changed)
> Aug 21 22:46:16 limbo kernel: da4 at umass-sim1 bus 1 scbus2 target 0 lun 0
> Aug 21 22:46:16 limbo kernel: da4: <JetFlash TS4GJFV85 8.07> Removable 
> Direct Access SCSI-2 device
> Aug 21 22:46:16 limbo kernel: da4: 40.000MB/s transfers
> Aug 21 22:46:16 limbo kernel: da4: 3900MB (7987200 512 byte sectors: 
> 255H 63S/T 497C)
> Aug 21 22:46:24 limbo kernel: (da4:umass-sim1:1:0:0): SYNCHRONIZE 
> CACHE(10). CDB: 35 0 0 0 0 0 0 0 0 0
> Aug 21 22:46:24 limbo kernel: (da4:umass-sim1:1:0:0): CAM status: SCSI 
> Status Error
> Aug 21 22:46:24 limbo kernel: (da4:umass-sim1:1:0:0): SCSI status: Check 
> Condition
> Aug 21 22:46:24 limbo kernel: (da4:umass-sim1:1:0:0): SCSI sense: 
> ILLEGAL REQUEST asc:26,0 (Invalid field in parameter list)
> 
> Mentioned patch was looking like:
> 
> USB_QUIRK(ALCOR, TRANSCEND, 0x0142, 0x0142, UQ_MSC_FORCE_WIRE_BBB, 
> UQ_MSC_FORCE_PROTO_SCSI, UQ_MSC_NO_GETMAXLUN, UQ_MSC_NO_SYNC_CACHE),
> 
> But I don't understand what should be set for my flash at 3-4 places... 
> They are covering some range but inspecting my flash I don't see 
> something close to the 0x142.

This is bcdDevice range. So, change first 0x0142 to 0x100 for your
flash drive or add another quirk (before quirk for all TRANSCEND's)
with 3-4 places set to 0x100.

-- 
LEFT-(UANIC|RIPE)
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