Hi,
As you can see in the bug report, currently the ata driver lacks
support for changing the APM configuration of its attached devices.
This is problem for many laptop harddisks, making them park its heads
everytime they come idle.
I've made a quick hack for my laptop implemeting this ioctl in
ata_disk.c:
case DCMD_APM_DISABLE:
rc = ata_set_feature(ata_ctlp, ata_drvp, 0x85, 0);
break;
This makes me able to disable the APM at my desire, just as you can do
in linux with "hdparm -B 255".
I'd like to implement a complete APM interface for this the ata driver,
but first I think that I need your aproval and some guidelines about
the clean/proper/aproved way to implement a new ioctl and add some
defines to ata_*.h
Thanks!
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