[no subject]

I even have a kernel todo that may be simple enough to be a demo.

I want to understand how the "hdparm -r" command operates in the
kernel and why it does not work with 2.6.8 (at least on my hardware).

I know it is an ioctl (BLKROSET) call from user space, but from there
I totally lose it.

Unfortunately there seem to be 3 independant core driver areas just
for ATA drives.  (Basic ide for MB controllers, advanced for PCI based
controllers, libata for SATA drives.)

It is all very confusing, and the ioctl implementations seem to be pure magic.

Greg
-- 
Greg Freemyer


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