dmesg:
umass0: SigmaTel, Inc. USBMSC Audio Player, rev 1.10/0.01, addr 3
umass0: Get Max Lun not supported (IOERROR)
Enabling quirks for device
da0 at umass-sim0 bus 0 target 0 lun 0
da0: <SigmaTel MSCN 0001> Removable Direct Access SCSI-4 device
da0: 1.000MB/s transfers
da0: 125MB (256001 512 byte sectors: 64H 32S/T 125C)
The NO_PREVENT support has been added. Does this work for you? { {T_DIRECT, SIP_MEDIA_REMOVABLE, "SigmaTel", "MSCN", "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE|DA_Q_NO_PREVENT },
Yes, it does work :)
I have just got around to trying this pen-drive again and have been trying tracking down data corruptions. If I mount the drive, write a file, umount/mount again the file is different.
Using cmp I have found that there are consistent blocks of nulls in the written file where data should be. The block is always 0xfff bytes long and starts at 0x3000. I have tried many files and the offsets are always the same. All the other data in the file is correct and at the right location.
0x3000 -> 0x3fff 0x7000 -> 0x7fff 0xb000 -> 0xbfff 0xf000 -> 0xffff 0x13000 -> 0x13fff ... and so on until the end of the file ...
Any suggestions?
Andy
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