On Sunday 24 April 2005 18:55, Jeff Garzik wrote: > > 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? Tried with it both defined and undefined. When it's defined an extra line is added (the last one below) when loading the sata_via module: sata_via version 1.1 ACPI: PCI interrupt 0000:00:0f.0[B] -> GSI 20 (level, low) -> IRQ 20 sata_via(0000:00:0f.0): routed to hard irq line 4 ata3: SATA max UDMA/133 cmd 0xE800 ctl 0xE402 bmdma 0xD400 irq 20 ata4: SATA max UDMA/133 cmd 0xE000 ctl 0xD802 bmdma 0xD408 irq 20 ata3: dev 0 cfg 49:0f00 82:0000 83:0000 84:0000 85:0000 86:0000 87:0000 88:0007 ata3: dev 0 ATAPI, max UDMA/33 ata3: dev 0 configured for UDMA/33 scsi2 : sata_via ata4: no device found (phy stat 00000000) scsi3 : sata_via ata3: command 0xa0 timeout, stat 0xd0 host_stat 0x1 -- Regards, Tais M. Hansen OSD ___________________________________________________________ "If people had understood how patents would be granted when most of today's ideas were invented and had taken out patents, the industry would be at a complete standstill today." -Bill Gates (1991)
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