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From: berny@tndsyd.oz.au (Berny Goodheart)
Newsgroups: comp.lang.c
Subject: Re: caddr_t
Message-ID: <692@tndsyd.oz.au>
Date: 12 Mar 91 01:01:57 GMT
References: <1991Mar8.192533.717@citib.com>
Organization: Tandem Computers Incorporated, Sydney, NSW, Australia
Lines: 16

In article <1991Mar8.192533.717@citib.com> scairns@citib.com (Scott Cairns) writes:
>Can anyone give me a consise description of exactly
>what "caddr_t" is?  It's not in K & R (version 1).
> 

Here is a list of defined kernel data types:

caddr_t		Byte aligned Virtual memory address.
daddr_t		Block number of a block device.
dev_t		Major-Minor device number.
label_t		Data block for 'setjmp'
off_t		Byte offset in file.
paddr_t		Physical memory address

These and other data types are defined in "types.h" and should only
be used in kernel code such as device drivers.