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Thread: Yet Another USB Memory Card Reader Thread

  1. #1
    Junior Member
    Join Date
    Feb 2004
    Posts
    8

    Yet Another USB Memory Card Reader Thread

    <Obligatory>I Love Knoppix! </Obligatory>

    It appears that my Shuttle 6-in-1 memory card reader is being recognized and mounted properly, but I still can't get read it. I was hoping somebody could give me a clue.

    Here's what I've done (most of this was culled from other threads here)...

    (As root)

    In the 'append' statement in /etc/lilo.conf I added "max_scsi_luns=6" and then executed /sbin/lilo

    When I rebooted the following messages appeared in /var/log/dmesg

    Code:
    usb.c: registered new driver usbdevfs
    usb.c: registered new driver hub
    usb-ohci.c: USB OHCI at membase 0xe0c82000, IRQ 5
    usb-ohci.c: usb-00:02.0, nVidia Corporation nForce2 USB Controller
    usb.c: new USB bus registered, assigned bus number 1
    usb-ohci.c: USB OHCI at membase 0xe0c84000, IRQ 11
    usb-ohci.c: usb-00:02.1, nVidia Corporation nForce2 USB Controller (#2)
    usb.c: new USB bus registered, assigned bus number 2
    usb.c: registered new driver usb-storage
    ...also

    Code:
    Kernel command line: BOOT_IMAGE=Linux ro root=303 hda=scsi hdb=scsi hdc=scsi hdd=scsi hde=scsi hdf=scsi hdg=scsi hdh=scsi max_scsi_luns=6 apm=power-off nomce
    Attached scsi CD-ROM sr0 at scsi0, channel 0, id 0, lun 0
    Attached scsi removable disk sda at scsi1, channel 0, id 0, lun 0
    Attached scsi removable disk sdb at scsi1, channel 0, id 0, lun 1
    Attached scsi removable disk sdc at scsi1, channel 0, id 0, lun 2
    Attached scsi removable disk sdd at scsi1, channel 0, id 0, lun 3
    cat /proc/scsi/usb-storage-0/1 shows the following...
    Code:
       Host scsi1: usb-storage
           Vendor:         Ltd
          Product: Winter Ver1.3
    Serial Number: 104029804230
         Protocol: Transparent SCSI
        Transport: Bulk
             GUID: 07cc03200000104029804230
         Attached: Yes
    I then made mount points underneath /mnt, called sda1-sda4

    mount -t vfat /dev/sda1 /mnt/sda1 returns a "mount: /dev/sda1 is not a valid block device" error. the same error is returned for sda1-sda4.

    mount -t usbfs /dev/sda1 /mnt/sda1 works!

    However, here are the contents of /mnt/sda1...
    Code:
    dr-xr-xr-x    1 root     root            0 Feb 21 14:13 .
    drwxr-xr-x   14 root     root          368 Feb 21 14:51 ..
    dr-xr-xr-x    1 root     root            0 Feb 21 14:13 001
    dr-xr-xr-x    1 root     root            0 Feb 21 14:13 002
    -r--r--r--    1 root     root            0 Feb 21 14:13 devices
    -r--r--r--    1 root     root            0 Feb 21 14:13 drivers
    devices and drivers are both text files. devices contains...
    Code:
    T:  Bus=02 Lev=00 Prnt=00 Port=00 Cnt=00 Dev#=  1 Spd=12  MxCh= 3
    B:  Alloc=  0/900 us ( 0%), #Int=  0, #Iso=  0
    D:  Ver= 1.10 Cls=09(hub  ) Sub=00 Prot=00 MxPS= 8 #Cfgs=  1
    P:  Vendor=0000 ProdID=0000 Rev= 0.00
    S:  Product=USB OHCI Root Hub
    S:  SerialNumber=e0c84000
    C:* #Ifs= 1 Cfg#= 1 Atr=40 MxPwr=  0mA
    I:  If#= 0 Alt= 0 #EPs= 1 Cls=09(hub  ) Sub=00 Prot=00 Driver=hub
    E:  Ad=81(I) Atr=03(Int.) MxPS=   2 Ivl=255ms
    T:  Bus=01 Lev=00 Prnt=00 Port=00 Cnt=00 Dev#=  1 Spd=12  MxCh= 3
    B:  Alloc=  0/900 us ( 0%), #Int=  0, #Iso=  0
    D:  Ver= 1.10 Cls=09(hub  ) Sub=00 Prot=00 MxPS= 8 #Cfgs=  1
    P:  Vendor=0000 ProdID=0000 Rev= 0.00
    S:  Product=USB OHCI Root Hub
    S:  SerialNumber=e0c82000
    C:* #Ifs= 1 Cfg#= 1 Atr=40 MxPwr=  0mA
    I:  If#= 0 Alt= 0 #EPs= 1 Cls=09(hub  ) Sub=00 Prot=00 Driver=hub
    E:  Ad=81(I) Atr=03(Int.) MxPS=   2 Ivl=255ms
    T:  Bus=01 Lev=01 Prnt=01 Port=02 Cnt=01 Dev#=  2 Spd=12  MxCh= 0
    D:  Ver= 2.00 Cls=00(>ifc ) Sub=00 Prot=00 MxPS=64 #Cfgs=  1
    P:  Vendor=07cc ProdID=0320 Rev= 0.05
    S:  Manufacturer=        Ltd
    S:  Product=Winter Ver1.3
    S:  SerialNumber=104029804230
    C:* #Ifs= 1 Cfg#= 1 Atr=80 MxPwr=500mA
    I:  If#= 0 Alt= 0 #EPs= 2 Cls=08(stor.) Sub=06 Prot=50 Driver=usb-storage
    E:  Ad=81(I) Atr=02(Bulk) MxPS=  64 Ivl=0ms
    E:  Ad=02(O) Atr=02(Bulk) MxPS=  64 Ivl=0ms
    drivers contains...
    Code:
             usbdevfs
             hub
             usb-storage
    001 and 002 are directories. 001 contains two binary files 001 and 002, while 002 contains binary file 001.

    I've basically tried everything I know and am sort of at a brick wall in terms of my knowledge and understanding of linux devices. Any help would be greatly appreciated.

  2. #2
    Junior Member registered user
    Join Date
    Aug 2003
    Posts
    24
    It seems that your card reader doesn't use the vfat filesystem. What is the specific model of your Shuttle 6-in-1 reader? You might also want to google the model name along with the keyword "filesystem".

    Try mounting with msdos rather than vfat; ie. mount -t msdos /dev/sda1 /mnt/sda1

    Unfortunately, I don't have your brand of card reader, so I am limited in my ability to help. It's entirely possible that your card reader may use a non-standard USB CompactFlash chip. See this project for an attempt to reverse engineer a linux driver for an non-standard USB chip: http://sourceforge.net/projects/usbat2

    You might also want to check the search results for "Shuttle" on the Linux-USB Device Overview

  3. #3
    Junior Member
    Join Date
    Feb 2004
    Posts
    8

    Shuttle PC-12 6-in-1 card reader under Knoppix

    Thanks for replying.

    Quote Originally Posted by spurious
    It seems that your card reader doesn't use the vfat filesystem. What is the specific model of your Shuttle 6-in-1 reader? You might also want to google the model name along with the keyword "filesystem".
    Actually, from the documentation it apparently supports both vfat and msdos. I did try mounting it as msdos as well and got the "not a block device" error as I did with vfat.

    It's a Shuttle PC-12 6-in-1 card reader. See here.

    From the Linux How-To that comes with it, it appears to be fairly standard. These are the kernel options it recommends:
    Code:
    The USB reader need following items:
     SCSI emulation support = y
     SCSI support = y
     SCSI disk support = y
     SCSI generic support = y
     Support for USB = m
     UHCI Alternate Drive(JE) or OHCI (Compaq,iMacs,OPTi,SiS,ALi,...) support = m
     USB Mass storage support = m
     Preliminary USB device filesystem = y
     Dos FAT fs support = y
     MSDOS fs support = y
     UMSDOS: Unix-like file system on top of standard MSDOS fs
     VFAT (Windows-95) fs support
    
    The option items:
     USB verbose debug message = y
     USB Mass storage verbose debug =y
    In terms of mounting it, their Linux How-To says that "mount /dev/sd? /mnt/sd?" should work (where ? is the device name/number). I tried that as well, of course, and still got the "not a block device" error.

    Do you see anything non-standard about the kernel options it requires?

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