Since the memory content will be kept across suspension,
I guess there is no need for da to take special care.
Just like what ad does.
The actual suspend/resume method is for ata-pci.
For hardware devices to come back to previous state,
the correct place may be in SCSI HBA driver like ahc, sym,
Having noticed that there is not a big interest in it, among the
fellow FreeBSDers, I was about to set off and hack up the scsi
subsystem to implement spindown on suspend and spinup on resume of the
da devices, when I realized that there seems to be no hook in the SCSI
code for this events.
I'm
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