Re: Put unused PCI devices in D3

From: Pavel Machek
Date: Fri Oct 03 2008 - 15:43:22 EST


Hi!

> > > * If the device is a bridge or hub with no downstream device
> >
> > Potential problems with hotplugging? But sure, this kind of thing is
> > being implemented in USB and SCSI.
> >
> > > * Whenever userspace requests D3 via sysfs
> >
> > This functionality was explicitly removed a few years back.
>
> I sure would like to have it back, if only just for experimentation.

Feel free to find it and reapply for your experiments. The file was in
sysfs was called power/state, just grep git logs for that.

--
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