[dundee] Problems with USB mass storage device

[Andrew Clayton]

On Sat, 2003-08-09 at 20:13, Andrew Clayton wrote:
> On Sat, 2003-08-09 at 18:38, Rob Sharp wrote:
> > I may be wrong, as some people on the list know far more about Linux
> > than I, but I think more to the point is that the USB mass-storage
> > modules don't pick up the manufacturer/device ID. A way around this is
> > to edit the unusual devices header file in the usb section of the
> 
> It's not so much the id's, but just the general functionality. It seems
> a lot of usb devices don't work the standard way and need special cased.
> 
> But it does seem that some change to the unusual_devs.h file are needed.
> As confirmed here 
> 
> http://www.qbik.ch/usb/devices/showdev.php?id=1782
> 
> 
> > kernel, adding the appropriate manufacturer and device IDs, and then
> > recompiling. Not ideal, but it does work. I had to hack the source to
> > get it to recognise the card reader.
> > 
> > If that didn't make any sense to you, then it may be easier to buy a CF
> > reader that is already compiled into the module...
> > 
> > As I was writing this I thought it'd be best to google before sending,
> > and lo and behold!
> > 
> > http://www.mail-archive.com/linux-usb-users@lists.sourceforge.net/msg06729.html
> > 
> 
> It seems that 2.4.22-rc2 has everything but the US_FL_START_STOP flag...
> I wonder just how much that is needed. It would seem that the Aiptek
> Mega DV entry was added post 2.4.21 i.e during the 2.4.22 work which is
> pretty recent.
> 
> 
> However it is quite likely that your (Fionnbar's) Mandrake kernel
> doesn't have this entry at all. This should be easy to check if you have
> the mandrake kernel source rpm installed.
> 
> The file of interest is drivers/usb/storage/unusual_devs.h search for
> Aiptek.
> 
> 
> Though you should still try mounting the CF before patching your
> kernel... as it seems that everything was good to go and just needed
> mounting.
> 
> 

OK.. it seems that the Aiptek entry that is there is for something
slightly different to your device. So if you can't get it mounted and
working then it looks like you will need to add the following 

UNUSUAL_DEV( 0x08ca, 0x0105, 0x0000, 0x9999,
            "Aiptek",
            "Mega DV",
            US_SC_SCSI, US_PR_BULK, NULL,
            US_FL_START_STOP | US_FL_MODE_XLATE ),

to drivers/usb/storage/unusual_devs.h and rebuild your kernel.


> 
> > Let us know how it goes...
> > 
> > Rob.
> > 
> 
> 
> 
> --
> Andrew