[olug] USB Hub works, CDR doesn't

[Matthew G. Marsh]

On Tue, 20 May 2003, Trent Melcher wrote:

> HAve you tried pulling the USB card reader out and rerun the cdrecord
> -scanbus, to see if you can see your cd-rw??  If they were true scsi
> devices I would say they are set to the same SCSI ID, but of course thats
> not the case.  I wonder if there is a way to trick cdrecord into thinking
> this?  It sounds like cdrecord stops scainning once it finds a device.
> Have you checked the docs on cdrecord?  Maybe a bug, update the version,
> couple options to try.
>
> Trent

Do you have the usbfs mounted? cat /proc/bus/usb/devices

Note that if you have multiple devices on different USB ports then often
as not they are placed on different virtual scsi busses.

fe: I have my built in CDRW assigned under ide-scsi and it shows up on
scsibus 0. Then my DVDRW on USB shows up on scsibus 1. And the USBHD on a
different usb port shows up as sda on scsibus 2. cdrecord scan has known
limitations dealing with this but if you check the usb devices then you
can issue the direct scan command: cdrecord dev=1,0,0 -inq

ok?

> On Mon, 19 May 2003, Mike Hostetler wrote:
>
> >
> > I had a CD-RW working not too long ago.  I then recently purchased a USB
> > card reader (since I got a digital camera -- see my post a few months
> > ago ) and now I can't get my cd-rw to be recognized.  I haven't taken out
> > any modules, but it's just gone.
> >
> > A results of a "cdrecord -scanbus" shows my card reader:
> >
> > Cdrecord 2.0 (i686-pc-linux-gnu) Copyright (C) 1995-2002 J?rg Schilling
> > Linux sg driver version: 3.1.24
> > Using libscg version 'schily-0.7'
> > scsibus1:
> >         1,0,0   100) 'Lexar   ' 'USB Storage-SMC ' '0180' Removable Disk
> >         1,1,0   101) *
> >         1,2,0   102) *
> >         1,3,0   103) *
> >         1,4,0   104) *
> >         1,5,0   105) *
> >         1,6,0   106) *
> >         1,7,0   107) *
> >
> > An lsmod shows this:
> >
> > mikeh at gideon:pts/1:296 files 12Mb -> sudo /sbin/lsmod
> > Module                  Size  Used by    Not tainted
> > lp                      6528   0  (autoclean) (unused)
> > parport                15648   0  (autoclean) [lp]
> > sd_mod                 11148   0  (autoclean) (unused)
> > sr_mod                 16952   0  (autoclean) (unused)
> > printer                 7744   1
> > usb-storage            28944   0
> > ide-scsi                8944   0  (autoclean)
> > sg                     29804   0
> > scsi_mod               87988   5  [sd_mod sr_mod usb-storage ide-scsi sg]
> > uhci                   27472   0  (unused)
> > visor                   9896   0  (unused)
> > usbserial              18492   0  [visor]
> > usbcore                63968   1  [printer usb-storage uhci visor
> > usbserial]
> > sb                      7764   0  (unused)
> > sb_lib                 39118   0  [sb]
> > uart401                 6788   0  [sb_lib]
> >
> > anyone have any ideas?
> >
>
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--------------------------------------------------
Matthew G. Marsh,  President
Paktronix Systems LLC
1506 North 59th Street
Omaha  NE  68104
Phone: (402) 553-2288
Email: mgm at paktronix.com
WWW:  http://www.paktronix.com
--------------------------------------------------