Re: USB cardreader
On Saturday 25 December 2004 4:04 pm, jeff elkins wrote:
> On Saturday 25 December 2004 3:19 pm, H. S. wrote:
> > Apparently, _jeff elkins_, on 25/12/04 09:06,typed:
> > > Merry Christmas, List!
> > >
> > > I've built a new sid-based system (kernel 2.6.9) and I'm having a bit
> > > of trouble with the attached usb cardreader.
> > >
> > > It's recognized at boot:
> > >
> > > usb 2-2: new full speed USB device using address 2
> > > scsi0 : SCSI emulation for USB Mass Storage devices
> > > Vendor: DMI Model: MultiFlash Rev: 3.00
> > > Type: Direct-Access ANSI SCSI revision: 02
> > >
> > > But unless I boot with cards inserted, the devices I need (sda1,sdc1)
> > > are not created. Additionally, once mounted they refuse to unmount with
> > > a 'device busy.'
> > >
> > > I probably missed something in my setup, thanks for any help.
> > >
> > > Jeff Elkins
> >
> > I have a USB card reader that is detected alright but I have to have a
> > card in a slot to get that detected too. The problem is that the card
> > reader hardware makes itself detectable to a USB port but doesn't give
> > any information when a card is inserted. So that card insertion totoally
> > hidden from hotplug. It works onlyif you have a card inside the reader
> > already before plugging it in the USB port.
> >
> > My solution was to make a mount point that I use after I insert the card
> > in one of the slots. YMMV.
> >
> > However, if you card does notify the system when a new card is inserted
> > and your system still doen't know about a new card, then something is
> > wrong somewhere.
> >
> > ->HS
>
> I used that strategy with my previous system. Point /dev/sda1 and /dev/sdc1
> to /cfcard and /sdcard in fstab and mount away. No longer.
>
> I found out I can run cfdisk /dev/sda and cfdisk /dev/sdc, then /dev/sda1
> and dev/sdc1 are created. Then I can mount and unmount. So, somehow,
> something is screwed. I built this system from scratch with sarge
> netinstall and apt, so I've probably left something out...
>
> Jeff
Perhaps now that it's not Christmas and the Umbutu thread has burnt out I can
get some assistance? :)
FYI, mounting these cards worked _flawlessly_, with no intervention, with my
previous sid install built on top of a basic Woody system. Hotplug is
installed and works fine for my Zaurus and a few other USB devices, so I
don't think that's the issue.
Does the fact that I can manually issue an cfdisk/fdisk /dev/sda or
cfdisk/fdisk /dev/sdc and have the required /dev/sda1 and /dev/sdc1 devices
appear jog any thoughts?
Are there any dpkg-reconfigure tricks (other than hotplug, which I've done)
which I could try?
Can I manually create /dev/sda1 and /dev/sdc1 which are static from boot to
boot?
Thanks again to those who've replied and for any new help.
Jeff
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