[plamo:16139] Re: CDR YAMAHA CRW-F1

[KATOH Yasufumi]

加藤泰文です．

>>> On Tue, 05 Nov 2002 14:20:57 +0900 (JST)
    in message   "[plamo:16138] Re: CDR YAMAHA CRW-F1"
                  早間義博-san wrote:

> > ここで dev=/dev/sg0 はマズいんじゃないかなぁ．

私もそう思っていたりしました...

> dev=/dev/sg0 と言う指定方法は実績があります。

実績があるのと，実際正しいかどうか? はまた別だと思ったので，ちょっと調
べてみたところ

     The device refers to scsibus/target/lun of the  CD-Recorder.
     Communication  on SunOS is done with the SCSI general driver
     scg. Other operating systems are using a library  simulation
     of    this    driver.     Possible    syntax    is:     dev=
     scsibus,target,lun or dev= target,lun.  In the latter  case,
     the  CD-Recorder has to be connected to the default SCSI bus
     of  the  machine.   Scsibus,  target  and  lun  are  integer
     numbers.  Some operating systems or SCSI transport implemen-
     tations may require to specify a filename in  addition.   In
     this  case  the  correct  syntax  for  the  device is:  dev=
     devicename:scsibus,target,  or  dev=  devicename:target,lun.
     If  the  name  of the device node that has been specified on
     such a system refers to exactly one SCSI device, a shorthand
     in  the  form dev= devicename:@ or dev= devicename:@,lun may
     be used instead of dev= devicename:scsibus,target,

                          : (中略)

     dev=target
          Sets the SCSI target for  the  CD-Recorder,  see  notes
          above.  A typical device specification is dev=6,0 .  If
          a filename must be provided together with the numerical
          target  specification,  the  filename is implementation
          specific.  The correct filename in  this  case  can  be
          found  in  the  system  specific  manuals of the target
          operating system.  On a FreeBSD system without CAM sup-
          port,   you  need  to  use  the  control  device  (e.g.
          /dev/rcd0.ctl).  A correct device specification in this
          case may be dev=/dev/rcd0.ctl:@ .

          On Linux, drives connected to a parallel  port  adapter
          are  mapped  to  a virtual SCSI bus. Different adapters
          are mapped to different targets on  this  virtual  SCSI
          bus.

          If no dev option is present, cdrecord will try  to  get
          the device from the CDR_DEVICE environment.

          If the argument to the dev= option does not contain the
          characters  ',',  '/', '@' or ':', it is interpreted as
          an  label  name  that  may  be  found   in   the   file
          /etc/default/cdrecord (see FILES section).

のようにデバイス名が入る場合もあるようですね．が，man を見る限りでは，
scsibus と target なんかの指定もするみたいですし，通常の linux であれ
ば dev=0,0,0 みたいになるような気がしますが...

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