Re: USB Card Reader.

[Wulfy <wulfmann@tiscali.co.uk>]

Justin Guerin wrote:

> Wulfy wrote:
>
>  
>
> > Justin Guerin wrote:
> >
> >    
> >
> > > This is what you need to do, but it failed because udev didn't create the
> > > special device node.  You can either create it manually with makedev, and
> > > have to create it manually every time, or tell udev to create the
> > > individual partition nodes when the device nodes for the reader are
> > > created.
> > >
> > >      
> > Sorry this is so late getting back.
> >
> > I followed the instructions in
> > <http://www.debian-administration.org/articles/126> and now have the
> > device nodes available.  Everything *seems* to be working (I get a no
> > media error message if I try to mount an empty slot), yet I get the
> > message:
> >
> > mount: /dev/card_sm1 is not a valid block device
> >
> > when I try to mount it.
> >
> > Any ideas where I've gone wrong?  If you need any more info, just ask.
> >
> >    
> What does an "ls -l /dev/card_sm1" show?
>  
brw-rw----  1 root floppy 8, 33 Mar 28 21:43 /dev/card_sm1
                              ^^^^
Seems that udev thinks it's a floppy drive...?  Would that mean that the 
fstab entry below should have "msdos" (or whatever the format type is 
for floppy drives) rather than "vfat"?

> What do you have in your udev rules that creates that node?
>  
Yewdales-lodge:~# cat /etc/udev/rules.d/local.rules
BUS="scsi", SYSFS{model}="USB 2 HS-SM", NAME{all_partitions}="card_sm"
BUS="scsi", SYSFS{model}="USB 2 HS-CF", NAME{all_partitions}="card_cf"
BUS="scsi", SYSFS{model}="USB 2 HS-SD/MMC", NAME{all_partitions}="card_sd"
BUS="scsi", SYSFS{model}="USB 2 HS-MS", NAME{all_partitions}="card_ms"

(I set all of them up as I don't want to have to come back to this if I 
ever get other cards to read.)

> What do you have in your fstab, or what was your mount command if you didn't
> have anything setup in fstab?
>  
#Card Reader nodes

/dev/card_sd1   /media/sd       vfat    rw,user,noauto  0       0
/dev/card_cf1   /media/cf       vfat    rw,user,noauto  0       0
/dev/card_sm1   /media/sm       vfat    rw,user,noauto  0       0
/dev/card_ms1   /media/ms       vfat    rw,user,noauto  0       0

> Also, what does the partition table on your card look like?  That is, are
> you sure the data resides on the first primary partition?
>  
Here I have no idea, really.  I've only ever done this with the serial 
connector and that was some time ago.

> Justin
Thanks for all your help.  It's much appreciated...

--
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Wulfmann

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