On Fri, May 22, 2009 at 16:15, Alan Jenkins <alan-jenkins@xxxxxxxxxxxxxx> wrote:
> I've been looking at what is responsible for all the path lookup activity in
> coldplug. On my debian stable system, it looks like every device gets its
> parent looked up in sysfs. I think this is due to SUBSYSTEMS matches.
>
> I see the udev default rules are different, but it looks like they still
> test for SUBSYSTEMS on every single device:
>
> SUBSYSTEMS=="scsi", ATTRS{type}=="1|8", GROUP="tape"
> SUBSYSTEMS=="scsi", ATTRS{type}=="4|5", GROUP="cdrom"
> SUBSYSTEMS=="scsi", ATTRS{type}=="0", GROUP="disk"
>
>
> Should we add SUBSYSTEM="scsi_generic" to these three rules?
Sounds good. I think the "tape" will need a match for the actual
scsi-tape devices too? The real "cdrom" and "disk" devices seems
covered by explicit rules.
Thanks,
Kay
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