Subject: Kernel privileged program?
To: 'netbsd-help@netbsd.org' <netbsd-help@netbsd.org>
From: Bruce Martin <BruceM@cat.co.za>
List: netbsd-help
Date: 05/10/1999 14:09:27
This message is in MIME format. Since your mail reader does not understand
this format, some or all of this message may not be legible.
------ =_NextPart_001_01BE9ADD.F4763100
Content-Type: text/plain
I need to write a program that can write to our on-board
ROM. It is a simple read/write program, and ths I don't see
the need to write a device driver. However, I need the same
memory-access privileges that device drivers normally have:
how do I write a program/set it up so that I can have access
to memory areas normally disallowed in user mode?
Thanks
Bruce
------ =_NextPart_001_01BE9ADD.F4763100
Content-Type: text/html
Content-Transfer-Encoding: quoted-printable
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2//EN">
<HTML>
<HEAD>
<META HTTP-EQUIV=3D"Content-Type" CONTENT=3D"text/html; =
charset=3Dus-ascii">
<META NAME=3D"Generator" CONTENT=3D"MS Exchange Server version =
5.0.1460.9">
<TITLE>Kernel privileged program?</TITLE>
</HEAD>
<BODY>
<P><FONT SIZE=3D2>I need to write a program that can write to our =
on-board ROM. It is a simple read/write program, and ths I don't see =
the need to write a device driver. However, I need the same =
memory-access privileges that device drivers normally have: how do I =
write a program/set it up so that I can have access to memory areas =
normally disallowed in user mode?</FONT></P>
<P><FONT SIZE=3D2>Thanks</FONT>
<BR><FONT SIZE=3D2> Bruce</FONT>
</P>
</BODY>
</HTML>
------ =_NextPart_001_01BE9ADD.F4763100--