Messages in this thread | | | Subject | Re: Add a "enable" sysfs attribute to the pci devices to allow userspace (Xorg) to enable devices without doing foul direct access | From | Peter Jones <> | Date | Thu, 04 May 2006 19:22:03 -0400 |
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On Thu, 2006-05-04 at 17:38 -0400, Jon Smirl wrote:
> # cd /sys/bus/pci/devices/0000:01:00.0 > # echo 1 >rom > # hexdump -C rom > > As far as I know this works on every platform, not just the PC one.
Yep, you're right, this works. So we don't necessarily need it for the vbetool case. X still could use it though, instead of their scary poke-at-memory way.
> Don't mess around with the hardware trying to get to the ROM. Use the > API provided by the kernel. Messing with the hardware will get it into > a state that the kernel doesn't know about and can ultimately crash > your system.
Exactly who do you see here messing with the hardware directly instead of using kernel APIs?
-- Peter
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