From: "Tais M. Hansen" <tais.hansen@osd.dk>
Organization: OSD
To: linux-kernel@vger.kernel.org
Subject: Re: SATA/ATAPI
Date: Sun, 24 Apr 2005 00:08:53 +0200
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On Thursday 21 April 2005 19:41, Tais M. Hansen wrote:
> One of my linux boxes has a Plextor DVD-RW drive with a SATA interface. T=
he
> kernel sees this drive (ata3) but apparently doesn't tie it to a sdx
> device. The box also have a SATA harddisk, which is working just fine. The
> relevant dmesg output is pasted below.

I've been digging through sr, scsi, sata_via, libata-scsi and libata-core,=
=20
littering the code with printk's.

My lack of knowledge on how the kernel handles devices, is really showing n=
ow.=20

I've been unable to figure out what is supposed to tie sr to the devices=20
probed by sata_via. Also, littering sr with printk's gave me the idea that =
sr=20
is not even looking for cdrom devices. It loads, does the basic module __in=
it=20
stuff and then silence. Should sr find devices itself or is the kernel=20
supposed to inform sr via some callback hook? I could really be barking up=
=20
the wrong tree here, and not even see it.

Enabling SCSI logging and kernel debug didn't really give me anything usefu=
l.

=2D-=20
Regards,
Tais M. Hansen
OSD

___________________________________________________________
"If people had understood how patents would be granted when most of today's=
=20
ideas were invented and had taken out patents, the industry would be at a=20
complete standstill today." -Bill Gates (1991)

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