Questions on physdev vs. classdev

[Artem Kachitchkine]

> Additionally, FreeBSD doesn't register hotplug events for SCSI devices
> (e.g. disks, tapes, CD-ROMS, etc.).  What I'm doing now is upon
> detection of such a device, I add the blockdev, then fire off hotplug
> events for the various slices and partitions.  In essence, I have events
> within events.  Is this legal?

Sure, as long as your events are in correct order - branches should be 
added top-down: first block device, then it's children, recursively.

Again, events that the HAL backend consumes are really an OS artifact, 
all that matters to the applications is events that HAL emits in the 
forme of D-BUS signals.

-Artem.