You may want to open /dev/cpu/%d/msr see arch/i386/kernel/msr.c for deatails.
Here is an example of /dev/ports (the same thing).
#!/usr/bin/perl
open (PORT, "+< /dev/port");
sub in {
( $port ) = @_;
sysseek (PORT, $port,"SEEK_SET");
sysread (PORT, $data, 1);
return unpack ( 'C', $data );
};
sub out {
( $data, $port ) = @_;
$data = pack ( 'C', $data );
sysseek (PORT, $port,"SEEK_SET");
syswrite (PORT, $data, 1);
};
# The rest of this program makes music using the PC speaker :)
# if you want it drop me a line.
--- "Sarma V. Kolluru" <[EMAIL PROTECTED]> wrote:
> I am writing a new X display driver. To initialize the
> chip I require to use rdmsr and wrmsr defined in linux
> kernel. When I use any of these calls the Xserver
> crashes. The Linux Kernel is 2.4.0 and Xfree is 4.0.1.
>
> What I am doing is right or is there any other way of
> doing this?
>
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__________________________________________________
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Great stuff seeking new owners in Yahoo! Auctions!
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