Re: Add a "enable" sysfs attribute to the pci devices to allow userspace (Xorg) to enable devices without doing foul direct access

[Dave Airlie]

> It has everything to do with the 'enable' file. The 'enable' file lets
> you change the state of the hardware without an ownership mechanism.
> Other device users will not be notified of the state change. Since the
> other users can't be sure of the state of the hardware when they are
> activated, they will have to reload their state into the hardware on
> every activation.

Jon

you seem to miss the fact that this can be done now without the enable
flag, setpci can be used to disable the BARs, again the enable flag
doesn't change that....

Dave.
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