Path: utzoo!utgpu!attcan!uunet!umbc3!wolf.umbc.edu!alex
From: alex@wolf.umbc.edu (Alex Crain)
Newsgroups: unix-pc.general
Subject: Re: driver question
Message-ID: <1905@umbc3.UMBC.EDU>
Date: 13 Apr 89 17:38:55 GMT
References: <1893@umbc3.UMBC.EDU>
Sender: newspost@umbc3.UMBC.EDU
Lines: 25

In article <1893@umbc3.UMBC.EDU>, alex@wolf.umbc.edu (Alex Crain) writes:

> 	Does anyone know how to do dynamic page allocation in unix-pc
> device drivers? Specifically, I want to use rminit(), rmalloc() and
> rmfree(), but I'm having trouble understanding exactly how they work, and
> I want to avoid the crash-n-burn method of finding out.

	You can't do dynamic page allocation rith the rm*() functions. These
functions simple impose a first fit allocation algorithm over a block of 
existing memory. They are useful, but not in your case because you want to
allocate fixed size buffers, so you're better off using a freelist allocation
scheme. If you like, email me and I'll send you some sample code.

> 					:alex
> Alex Crain
> Systems Programmer			alex@umbc3.umbc.edu
> Univ Md Baltimore County		umbc3.umbc.edu!nerwin!alex

	I'm hoping that If I keep this conversation going, somebody might 
jump in...

					:alex
Alex Crain
Systems Programmer			alex@umbc3.umbc.edu
Univ Md Baltimore County		umbc3.umbc.edu!nerwin!alex