cdrecord et scsibus: -2 target: -2 lun: -2

[remi suinot <rsuinux@gmx.fr>]

J'ai un prblème pour graver.
Mon graveur (de marque sony) est en hdc, mais quand je teste
avec cdrecord, j'ai la désagréable impression suivante:
feline 18:18:41 admin /home/admin
$ sudo cdrecord -scanbus -dev=ATAPI
Cdrecord-Clone 2.01.01a03 (i686-pc-linux-gnu) Copyright (C) 1995-2005 Joerg Schilling
NOTE: this version of cdrecord is an inofficial (modified) release of cdrecord
      and thus may have bugs that are not present in the original version.
      Please send bug reports and support requests to <cdrtools@packages.debian.org>.
      The original author should not be bothered with problems of this version.

cdrecord: Warning: Running on Linux-2.6.15-rc5-k7
cdrecord: There are unsettled issues with Linux-2.5 and newer.
cdrecord: If you have unexpected problems, please try Linux-2.4 or Solaris.
scsidev: 'ATAPI'
devname: 'ATAPI'
scsibus: -2 target: -2 lun: -2
Warning: Using ATA Packet interface.
Warning: The related Linux kernel interface code seems to be unmaintained.
Warning: There is absolutely NO DMA, operations thus are slow.
cdrecord: No such file or directory. 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 .

je suis en 2.6.14, avec l'option hdc=ide-scsi dans grub
Aurais-je fait une ânerie quelque part?

Merci de votre aide.

Rémi.