Subject: Re: cmos ram access?
To: None <>
From: Takahiro Kambe <>
List: current-users
Date: 03/26/2003 03:25:31
In message <>
	on 25 Mar 2003 13:06:04 -0500,
	"Perry E. Metzger" <> wrote:
> However, it should be straightforward to build a /dev/nvram equivalent
> if you wish to -- there isn't much that it needs to do. A lot of the
> code you want is associated with the i386 cmos clock functions we
> already have...
I've written such device as "hack" level for my own purpose.

/dev/cmos	read/write 128 bytes BIOS's cmos data.
		(supporting simple checksum calclation)

/dev/bios	read 256 bytes of BIOS ROM.
		(using md5/sha1 of this data for identifying
		 BIOS's revision.)

Takahiro Kambe <>