[lug] Re: usb cdburner?

Ben Luey lueyb at gridley.ACNS.Carleton.edu
Sun Sep 29 15:53:10 MDT 2002

So.. cat /proc/scsi/scsi produces

Attached devices: none

which is aproblem. I ran dmesg and they output might be helpful -- the
isofs_read_super error  doesn't look good.

usb-ohci.c: USB OHCI at membase 0xc88b9000, IRQ 4
usb-ohci.c: usb-00:02.0, Acer Laboratories Inc. [ALi] M5237 USB
usb.c: new USB bus registered, assigned bus number 1
hub.c: USB hub found
hub.c: 2 ports detected
hub.c: USB new device connect on bus1/1, assigned device number 2
usb.c: USB device 2 (vend/prod 0x7e5/0x5c01) is not claimed by any active
attempt to access beyond end of device
03:02: rw=0, want=33 x(=0x), limit=33
isofs_read_super: bread failed, dev=03:02, iso_blknum=16, block=32
scsi0 : SCSI host adapter emulation for IDE ATAPI devices

I'm wondering if the Que! drive uses some wierd protocol and isn't
compatible with linux? Any ideas?



On Sun, 29 Sep 2002, chris wrote:

> On Sun, Sep 29, 2002 at 01:01:06PM -0500, Ben Luey wrote:
> > IYeh, iso9660... that was a type.; So I put a known data cd in the drive
> > before trying to mount figuring that the first step to using the burner is
> > to read a cd from it. The problem is that I scsi system doesn't know that
> > it is there or I don't know where on teh scsi system the drive is... usb
> > seems to have no problem, but I don't know what device to use.
> a first step to see if it's even making it to the "system thinks it's a
> scsi device" stage is 'cat /proc/scsi/scsi'.  does it show up?  if so
> that also identifies its bus/id/lun (useful for cdrecord, eventually).
> if it's there, try mounting /dev/sr0 instead of /dev/scd0?
> also make sure that you insert modules in the correct order...putting scsi
> and ide-scsi in before usb* will probably not do the trick (they were
> listed in the wrong order in your previous email, assuming left-to-right
> ordering).
> it's been a while since i've used a usb-data device, tho it did show up
> as sda (a CF reader).  i can't remember the sequence of modules to get
> it working tho...and the machine in question is dead :(.
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