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Re: Belkin CompactFlash reader problems




On Mon, May 26, 2003 at 11:52:02PM +1000, Chris Kenrick wrote......

> Hi all,
> 
> I've got a Belkin compact flash card reader connected to my USB port.
> Works fine under Win2K even with plug and play, so the hardware is OK.
> 
> I think I've got all the right modules loaded.  The reader seems to be
> picked up
> 
> chrisk@gandalf:~$ cat /proc/scsi/scsi 
> Attached devices: 
> Host: scsi0 Channel: 00 Id: 00 Lun: 00
>   Vendor: OEI-USB  Model: CompactFlash     Rev: 5.01
>     Type:   Direct-Access                    ANSI SCSI revision: 02
> 
> 
> But, /var/log/messages reports errors...
> 
> May 25 23:29:29 gandalf kernel: SCSI device sda: 31488 512-byte hdwr
> sectors (16 MB)
> May 25 23:29:29 gandalf kernel: sda: Write Protect is off
> May 25 23:29:29 gandalf kernel:  sda: sda1
> May 25 23:29:29 gandalf kernel: SCSI error: host 0 id 0 lun 0 return
> code = 8000002
> 
> I'm guessing that the reader doesn't work with Linux (says it is mass
> storage compliant, though).  Anyone have any bright ideas?

lsmod to see what is loaded.  You potentially need:
    usb-storage
    usbcore
    scsi_mod
    sd_mod
    usb-uhci
    input
    sr_mod

apt-get install sg3-utils and then use:

    sg_scan -i      // to see scsi type devices
    sg_map          // to see device associations

Mount the drive found (should be a SCSI drive):

    mount -t vfat   /dev/sdc1   /home/kevin/mnt/usbdevice
    // i have 2 scsi HD's, hence my reader is /dev/sdc1

Alternatively, make an /etc/fstab entry:

    /dev/sdc1   /home/kevin/mnt/usbdevice  vfat  noauto,user 0 0

Diagnose by checking:

    /var/log/messages
    /var/log/syslog
    /proc/bus/usb       // shows what's been seen
    /proc/scsi/scsi     // to see what scsi devices are there

Notes:  Like any other hard drive, you can use other commands
on your mounted USB storage device:

fdisk /dev/sdc1          // play with partitions
mkfs -t vfat /dev/sdc1   // format the partition(s) in FAT
mkfs -t ext3 /dev/sdc1   // format in Linux ext3 but not a good
                         // idea for digital camera disks

-- 
Kevin Coyner
mailto: kevin@rustybear.com
GnuPG key: 1024D/8CE11941

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