Very Computer

Hey all,

I'm trying to get a usb SmartDisk flash card reader to work under
FreeBSD 4.5.  I'm using a Transcend 64MB card.

Here's what dmesg says:

FreeBSD 4.5-RELEASE #0: Mon Jan 28 14:31:56 GMT 2002
<snip>
da0 at umass-sim0 bus 0 target 0 lun 0
da0: < CF Reader 1.04> Removable Direct Access SCSI-0 device
da0: 650KB/s transfers
da0: 62MB (128832 512 byte sectors: 64H 32S/T 62C)

Here's what happens when I try to mount it:

  mount /dev/da0c /mnt
mount: /dev/da0c: Input/output error
veronica# May 15 11:23:48 veronica /kernel: (da0:umass-sim0:0:0:0):
READ(06). CDB: 8 0 0 0 1 0
May 15 11:23:48 veronica /kernel: (da0:umass-sim0:0:0:0): READ(06). CDB:
8 0 0 0 1 0
May 15 11:23:48 veronica /kernel: (da0:umass-sim0:0:0:0): ILLEGAL
REQUEST asc:20,0
May 15 11:23:48 veronica /kernel: (da0:umass-sim0:0:0:0): ILLEGAL
REQUEST asc:20,0
May 15 11:23:48 veronica /kernel: (da0:umass-sim0:0:0:0): Invalid
command operation code
May 15 11:23:48 veronica /kernel: (da0:umass-sim0:0:0:0): Invalid
command operation code
May 15 11:23:48 veronica /kernel: da0: reading primary partition table:
error reading fsbn 0
May 15 11:23:48 veronica /kernel: da0: reading primary partition table:
error reading fsbn 0

Same goes for fdisk.

Anyone know a workaround to this?

Thanks!
James Nedila

Looks like the device (like so many USB disks) doesn't accept 6 byte
read commands.  I think 4.6 will attempt to fix this.  In the meantime,
if you can recompile your kernel, see the file
"src/sys/cam/scsi/scsi_da.c" and add a quirk entry for your particular
device.  The inquiry can be had with:

        camcontrol devlist

Is your card formatted with FFS (UFS)?  Generally memory cards are
formatted with FAT-16, so after adding the quirk entry and rebuilding
the kernel (and installing it), try:

        mount_msdos /dev/da0c /mnt

Good luck.
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