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SubjectRe: linux 2.2.19pre1 oops on cpuid (fwd)

---------- Forwarded message ----------
Date: Wed, 20 Dec 2000 15:56:38 -0500 (EST)
From: Alan Cox <>
To: M Sweger <>
Subject: Re: linux 2.2.19pre1 oops on cpuid (fwd)

> How would I activate the usb-serial in such a way as to activate the
> /dev/usb/tts/{0,1} instead of /dev/ttyUSB0. The /dev/ttyUSB) shows
> up correctly now in /proc, but I'd like to test and see the other one.

Thats for 2.4 and devfs. Probably works on 2.2 + devfs patch

> I have linux 2.2.19pre1 and have compiled the cpuid as a module. The
> kernel will oops if the cpuid module isn't loaded and one does
> /cat/dev/cpu/0/cpuid or /cat/dev/cpu/1/cpuid.

Yeah. That one should get squashed for pre4

> Question: When the cpuid module is loaded and I do a
> cat/dev/cpu/0/cpuid it gives me a code "C" forover. What does this code
> mean. I'm stil new to what it will be used for. Moreover, is there
> a list of all the possible code values it may take on for intel
> processors vs. other processor types?

Its a binary not ascii file for the cpuid() instruction results off each
CPU. See the intel cpu docs on the cpuid instruction and go from there

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