You're the third person to have this problem recently but I've not seen a 
solution yet. My SDDR-31 works fine with RH kernel 2.4.18-4. I get the 
following in my logs when I plug it in;

hub.c: USB new device connect on bus1/1, assigned device number 2
usb.c: USB device 2 (vend/prod 0x781/0x2) is not claimed by any active 
driver.
Initializing USB Mass Storage driver...
usb.c: registered new driver usb-storage
usb-uhci.c: interrupt, status 2, frame# 711
scsi1 : SCSI emulation for USB Mass Storage devices
  Vendor: SanDisk   Model: ImageMate II      Rev: 1.30
  Type:   Direct-Access                      ANSI SCSI revision: 02
WARNING: USB Mass Storage data integrity not assured
USB Mass Storage device found at 2
USB Mass Storage support registered.
floppy0: unexpected interrupt 
floppy0: sensei repl[0]=c0 repl[1]=0 
floppy0: sensei repl[0]=c1 repl[1]=0 
floppy0: sensei repl[0]=c2 repl[1]=0 
floppy0: sensei repl[0]=c3 repl[1]=0 

(no idea why the last four lines are there... looks like something to do 
with ACPI perhaps...).

And as expected in /proc/scsi/scsi;

[antonia] ~ > cat /proc/scsi/scsi
Attached devices: 
Host: scsi1 Channel: 00 Id: 00 Lun: 00
  Vendor: SanDisk  Model: ImageMate II     Rev: 1.30
  Type:   Direct-Access                    ANSI SCSI revision: 02

The modules that are loaded (automatically by hotplug) are;

[antonia] ~ > lsmod
Module                  Size  Used by    Tainted: PF 
usb-storage            58156   0

I already had these loaded;

ide-scsi                9664   0 # prob. not relevant
ide-cd                 30272   0 # prob. not relevant
sr_mod                 16920   0 (autoclean) (unused)  # ditto
cdrom                  32192   0 (autoclean) [ide-cd sr_mod] # ditto
scsi_mod              108608   3 (autoclean) [usb-storage ide-scsi sr_mod]
usb-uhci               24484   0 (unused)
usbcore                73152   1 [usb-storage usb-uhci]


On Fri, 5 Jul 2002, Dan Hensley wrote:

> I've spent several hours on this so far, and I've come to a dead end. 
> According to linux-usb.org, this reader should be supported, and it
> almost seems that it is.
> 
> I've made sure that I have the appropriate modules installed.  The USB
> devices does list that I have the device plugged in:
> 
> T:  Bus=01 Lev=01 Prnt=01 Port=01 Cnt=02 Dev#=  4 Spd=12  MxCh= 0
> D:  Ver= 1.10 Cls=00(>ifc ) Sub=00 Prot=00 MxPS= 8 #Cfgs=  1
> P:  Vendor=05e3 ProdID=0700 Rev= 1.13
> C:* #Ifs= 1 Cfg#= 1 Atr=80 MxPwr= 96mA
> 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
> 
> The device class is 08, which I believe should work (I know that class
> 10 does not).  I've also checked /proc/scsi, and I have a directory
> usb-storage-0, with a single file "1" in it.  It can tell when I have my
> reader plugged and unplugged from looking at the last line.
> 
>    Host scsi1: usb-storage
>        Vendor: Unknown
>       Product: USB Storage Device
> Serial Number: None
>      Protocol: Transparent SCSI
>     Transport: Bulk
>          GUID: 05e307000000000000000000
>      Attached: Yes
> 
> The problem seems to be though that /proc/scsi/scsi never lists the
> device.  All it has is my CD-RW, which is being run by ide-scsi.  As a
> result, I can't mount my card using /dev/sd[a-g]*.
> 
> If anyone has some insight, I'd greatly appreciate it.  I've tried using
> both uhci and usb-uhci modules, removing ide-scsi so that my CD-RW is
> not available.  I'm running stock 2.4.18, and I've selected all of the
> mass-storage sub-drivers listed.  I feel like I'm close, but I don't
> know what the last step is.
> 
> Thanks,
> Dan
> 
> 
> 
> 
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