linux-kernel - Re: [RFC] lib: crc8: add new library module providing crc8 algorithm

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Message-ID: <4DDB622B.1050005@broadcom.com>
Date:	Tue, 24 May 2011 09:45:47 +0200
From:	"Arend van Spriel" <arend@...adcom.com>
To:	"Alan Cox" <alan@...rguk.ukuu.org.uk>
cc:	"Andrew Morton" <akpm@...ux-foundation.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"linux-wireless@...r.kernel.org" <linux-wireless@...r.kernel.org>,
	"John W. Linville" <linville@...driver.com>,
	"Dan Carpenter" <error27@...il.com>
Subject: Re: [RFC] lib: crc8: add new library module providing crc8
 algorithm

On 05/22/2011 04:19 PM, Alan Cox wrote:
> Is it just used for wireless in this form ?
>
> See the n_gsm and bluetooth code for what I think is the same crc
> algorithm but in reverse bit order .

Hi Alan,

Look into the code in n_gsm and bluetooth code. The algorithm is the 
same, but except for the bit order it also is using a different 
polynomial. My current implementation has a fixed table. I could do the 
table generation runtime with the polynomial and the bit order as 
parameters. That would make it more general purpose.

Gr. AvS

-- 
Almost nobody dances sober, unless they happen to be insane.
-- H.P. Lovecraft --


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