From: Jeff Garzik
Date: Sun Apr 24 2005 - 11:57:04 EST

Tais M. Hansen wrote:
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. The
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, littering the code with printk's.

My lack of knowledge on how the kernel handles devices, is really showing now.

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

Enabling SCSI logging and kernel debug didn't really give me anything useful.

Did you turn on ATA_ENABLE_ATAPI in include/linux/libata.h?


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