From: William Lee Irwin III <wli@holomorphy.com>
To: Douglas Gilbert <dougg@torque.net>
Cc: linux-scsi@vger.kernel.org, gibbs@scsiguy.com
Subject: Re: Adaptec 39160 / Yamaha CRW8424S CD burning
Date: Mon, 13 Jan 2003 01:16:35 -0800 [thread overview]
Message-ID: <20030113091635.GC9558@holomorphy.com> (raw)
In-Reply-To: <3E22738D.3020000@torque.net>
On Mon, Jan 13, 2003 at 07:06:37PM +1100, Douglas Gilbert wrote:
> Depending on which version of cdrecord you are using,
> cdrecord will get to the SCSI Yamaha burner via:
> - scsi generic (sg) device (probably /dev/sg1)
> - or directly to /dev/scd0 (via the SG_IO ioctl in
> the block layer)
> - or via /dev/scd0 using the CDROM_PACKET_COMMAND
> ioctl
> Could you determine which one is happening? If the
> sg route is being used then the individual SCSI
> commands can be seen by observing 'cat /proc/scsi/sg/debug'
> while the burn is in progress. What version of cdrecord
> are you using and what does its output look like?
I'm trying Jens' patched cdrecord from people/axboe/tools/ on kernel.org
and got:
$ cat /proc/scsi/sg/debug
dev_max(currently)=6 max_active_device=3 (origin 1)
def_reserved_size=32768
>>> device=sg1 scsi0 chan=0 id=3 lun=0 em=0 sg_tablesize=128 excl=0
FD(1): timeout=20500ms bufflen=129024 (res)sgat=4 low_dma=0
cmd_q=1 f_packid=0 k_orphan=0 closed=0
rb>> act: id=0 blen=63504 t_o/elap=40000/15ms sgat=2 op=0x2a
$ cat /proc/scsi/sg/debug
dev_max(currently)=6 max_active_device=3 (origin 1)
def_reserved_size=32768
>>> device=sg1 scsi0 chan=0 id=3 lun=0 em=0 sg_tablesize=128 excl=0
FD(1): timeout=20500ms bufflen=129024 (res)sgat=4 low_dma=0
cmd_q=1 f_packid=0 k_orphan=0 closed=0
rb>> act: id=0 blen=63504 t_o/elap=40000/11ms sgat=2 op=0x2a
$ cat /proc/scsi/sg/debug
dev_max(currently)=6 max_active_device=3 (origin 1)
def_reserved_size=32768
>>> device=sg1 scsi0 chan=0 id=3 lun=0 em=0 sg_tablesize=128 excl=0
FD(1): timeout=20500ms bufflen=129024 (res)sgat=4 low_dma=0
cmd_q=1 f_packid=0 k_orphan=0 closed=0
rb>> act: id=0 blen=63504 t_o/elap=40000/65ms sgat=2 op=0x2a
next prev parent reply other threads:[~2003-01-13 9:16 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-01-13 7:15 Adaptec 39160 / Yamaha CRW8424S CD burning William Lee Irwin III
2003-01-13 8:06 ` Douglas Gilbert
2003-01-13 8:11 ` William Lee Irwin III
2003-01-13 9:16 ` William Lee Irwin III [this message]
2003-01-13 9:38 ` William Lee Irwin III
2003-01-13 10:35 ` William Lee Irwin III
2003-01-13 12:57 ` William Lee Irwin III
2003-01-13 23:01 ` Douglas Gilbert
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