usb burner with k3b

[eyephisc]

Hi, I have a toshiba laptop with a usb hp 8230e burner on Debian Sarge 2.6.8-2-i686. It has worked with linux before, but is giving me trouble with my most recent debian sarge installation. Specifically, cdrdao scanbus doesn't show it and k3b doesn't show it as a burner but does show it as a reader. I allowed k3bsetup to change the permissions as it liked. I also put cdrdao in the cdrom group, which my main user should be able to access. I don't know if this is a permission problem or a driver problem.

As root user:

Syslog shows:

Initializing USB Mass Storage driver...
scsi0 : SCSI emulation for USB Mass Storage devices
  Vendor: HP        Model: CD-Writer+ 8200f  Rev: 1.0A
  Type:   CD-ROM                             ANSI SCSI revision: 02
USB Mass Storage device found at 3
usbcore: registered new driver usb-storage
USB Mass Storage support registered.
sr0: scsi3-mmc drive: 32x/32x writer cd/rw xa/form2 cdda tray
Attached scsi CD-ROM sr0 at scsi0, channel 0, id 0, lun 0

cdrecord -scanbus shows:

cdrecord: No such file or directory. Cannot open '/dev/pg*'. Cannot open SCSI driver.
cdrecord: For possible targets try 'cdrecord -scanbus'.
cdrecord: For possible transport specifiers try 'cdrecord dev=help'.
cdrecord:
cdrecord: For more information, install the cdrtools-doc
cdrecord: package and read /usr/share/doc/cdrecord/README.ATAPI.setup .

cdrdao scanbus show:

Using libscg version 'schily-0.8'
ATA:1,0,0            TEAC    , DV-28E-0        , 7.0F

(it shows my reader and not my burner!)

So something seems funky with the scsi maybe? But I don't know enough about this. Any help is appreciated.

[martinP]

I've exactly the same problem with my USB 2.0 CD-RW (USB 2.0 external 5.25' IDE box).

Although the syslog, cdrdao, cdrecord outputs seem to be sane, k3b treats the CD writer as an ordinary CD reader, which is very frustrating, indeed. Im not a SCSI expert either and I've just started google for some informations. I must say, I haven't found anything usefull yet. ;-/



system: Mandrake 10.1
kernel: 2.6.8.1 - vanila

syslog:

Feb 10 10:42:21 o178 kernel: usb 4-1: new high speed USB device using address 8
Feb 10 10:42:21 o178 kernel: scsi6 : SCSI emulation for USB Mass Storage devices
Feb 10 10:42:21 o178 kernel:   Vendor: ASUS      Model: CRW-5224A         Rev: 1.37
Feb 10 10:42:21 o178 kernel:   Type:   CD-ROM                             ANSI SCSI revision: 02
Feb 10 10:42:25 o178 kernel: sr1: scsi3-mmc drive: 52x/52x writer cd/rw xa/form2 cdda tray
Feb 10 10:42:25 o178 kernel: Attached scsi CD-ROM sr1 at scsi6, channel 0, id 0, lun 0
Feb 10 10:42:25 o178 kernel: USB Mass Storage device found at 8
Feb 10 10:42:25 o178 kernel: Attached scsi generic sg0 at scsi6, channel 0, id 0, lun 0,  type 5
Feb 10 10:42:26 o178 scsi.agent[25791]: cdrom at /devices/pci0000:00/0000:00:10.3/usb4/4-1/4-1:1.0/host6/6:0:0:0

cdrdao scanbus

Cdrdao version 1.1.9 - &#40;C&#41; Andreas Mueller <andreas@daneb.de>
  SCSI interface library - &#40;C&#41; Joerg Schilling
  Paranoia DAE library - &#40;C&#41; Monty

Check http&#58;//cdrdao.sourceforge.net/drives.html#dt for current driver tables.

Using libscg version 'schily-0.8'

6,0,0 &#58; ASUS    , CRW-5224A       , 1.37

cdrecord -scanbus

Cdrecord-Clone 2.01-dvd (i686-pc-linux-gnu) Copyright (C) 1995-2004 Jörg Schilling
Note: This version is an unofficial (modified) version with DVD support
Note: and therefore may have bugs that are not present in the original.
Note&#58; Please send bug reports or support requests to <warly@mandrakesoft.com>.
Note&#58; The author of cdrecord should not be bothered with problems in this version.
Linux sg driver version&#58; 3.5.31
Using libscg version 'schily-0.8'.
cdrecord&#58; Warning&#58; using inofficial libscg transport code version &#40;warly-Mandrakelinux-scsi-linux-sg '@&#40;#&#41;scsi-linux-sg.c  1.83 04/05/20 Copyright 1997 J. Schilling'&#41;.
scsibus6&#58;
        6,0,0   600&#41; 'ASUS    ' 'CRW-5224A       ' '1.37' Removable CD-ROM

cdrecord -prcap -inq dev=6,0,0

Cdrecord-Clone 2.01-dvd (i686-pc-linux-gnu) Copyright (C) 1995-2004 Jörg Schilling
Note: This version ... etc.

scsidev: '6,0,0'
scsibus: 6 target: 0 lun: 0
Linux sg driver version: 3.5.31
Using libscg version 'schily-0.8'.
cdrecord: Warning: using inofficial libscg transport code version (warly-Mandrakelinux-scsi-linux-sg '@(#)scsi-linux-sg.c  1.83 04/05/20 Copyright 1997 J. Schilling').
Device type    : Removable CD-ROM
Version        : 2
Response Format: 1
Vendor_info    : 'ASUS    '
Identifikation : 'CRW-5224A       '
Revision       : '1.37'
Device seems to be: Generic mmc CD-RW.

Drive capabilities, per MMC-3 page 2A:

  Does read CD-R media
  Does write CD-R media
  Does read CD-RW media
  Does write CD-RW media
  Does not read DVD-ROM media
  Does not read DVD-R media
  Does not write DVD-R media
  Does not read DVD-RAM media
  Does not write DVD-RAM media
  Does support test writing

...

[eyephisc]

i got it mostly fixed simply with

modprobe sg

that is, my cdrecord output is now sane. however, i can only seem to get it recognized as a burner in k3b with root (su'd anyhow). user still only sees the burner as a reader...

i wonder why the usbmanager program didn't automagically load the sg module and how to fix that?

so it seems like a permissions problem that i can't figure out since my user seems to have all of the right permissions and be in the right groups.