linux-kernel - Re: [GIT PATCH] more Driver core patches for 2.6.19

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Date:	Sat, 16 Dec 2006 15:13:52 -0500
From:	Lee Revell <rlrevell@...-job.com>
To:	Jan Engelhardt <jengelh@...ux01.gwdg.de>
Cc:	Hans-Jürgen Koch <hjk@...utronix.de>,
	linux-kernel@...r.kernel.org
Subject: Re: [GIT PATCH] more Driver core patches for 2.6.19

On Thu, 2006-12-14 at 18:02 +0100, Jan Engelhardt wrote:
> On Dec 14 2006 10:56, Hans-Jürgen Koch wrote:
> >
> >A small German manufacturer produces high-end AD converter cards. He sells
> >100 pieces per year, only in Germany and only with Windows drivers. He would
> >now like to make his cards work with Linux. He has two driver programmers
> >with little experience in writing Linux kernel drivers. What do you tell him?
> >Write a large kernel module from scratch? Completely rewrite his code 
> >because it uses floating point arithmetics?
> 
> They use floating point in (Windows) kernelspace? Oh my.

Yes, definitely.  For example lots of Windows sound drivers do AC3
decoding in kernelspace.  Of course the vendors usually lie and say it's
done in hardware...

Lee

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