linux-kernel - Re: ioread32 endianess.

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Message-ID: <20070227132021.GC3545@athena.road.mcmartin.ca>
Date:	Tue, 27 Feb 2007 08:20:21 -0500
From:	Kyle McMartin <kyle@...artin.ca>
To:	Alexey Zaytsev <alexey.zaytsev@...il.com>
Cc:	Kyle McMartin <kyle@...artin.ca>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: ioread32 endianess.

On Tue, Feb 27, 2007 at 03:31:20PM +0300, Alexey Zaytsev wrote:
> Than how should one write a portable endian-independent driver? Should
> I wrap ioread32 with an le32_to_cpu?
> 

PCI is always little endian, unless it's not. In which case you're probably
dealing with a graphics card which likely has some kind of palindromic
register which you can read and write to set the endianness of the host
interface. Whoo. Run on sentence.
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