usb device not recognised

jdbca at clix.pt jdbca at clix.pt
Sun Jun 7 12:30:56 UTC 2009


   On Sáb Jun 6 14:42 , Wojciech Puch
     > When the TL     following console report:-<     >
     > umass1: on uh     > (probe0:umass-sim1:1:0:0): TEST UNIT READY     > (probe0:umass-sim1:1:0:0): CAM Status: SCS     > (probe0:umass-sim1:1:0:0): SCSI Status: Ch     > (probe0:umass-sim1:1:0:0): NOT READY asc:3     > (probe0:umass-sim1:1:0:0): Medium not pres     > (probe0:umass-sim1:1:0:0): Unretryable err     > da0 at umass-sim1 bus 1 target 0 lun 0
     > da0: Removable Direct Access SCSI-0 device
     > da0: 40.000MB/s transfers
     > da0: 1900MB (3892224 512 byte sectors: 255     >
     doesn't look like too big blocksize problem...
     > but fails to create /dev/da0. Also, when i     other usb devices are recognised.
     >
     > Unplugging produces this:-
     >
     > umass1: at uhub2 port 2 (addr 2) disconnec     > (da0:umass-sim1:1:0:0): Synchronize cache      0x39, scsi status == 0x0
     > (da0:umass-sim1:1:0:0): lost device     > (da0:umass-sim1:1:0:0): removing device en     > umass1: detached
     If it's "Synchronize cache failed" problem, then adding entry in
     umass.c will fix it, as with my olympus FE-20
     But it's rather not main problem. maybe some other quirk?
     look at possible quirks
     Many thanks for putting me on the right track.
     I played around with the quirks and found that it needs both these
     to creat     device and make it mountable:-
     NO_TEST_UNIT_READY | NO_SYNCHRONIZE_CACHE
     Works fine now
     Thanks
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