linux-kernel - Re: GPL only modules [was Re: [GIT PATCH] more Driver core patches for 2.6.19]

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Date:	Thu, 14 Dec 2006 13:16:23 -0800
From:	Greg KH <gregkh@...e.de>
To:	Alan <alan@...rguk.ukuu.org.uk>
Cc:	Hans-J??rgen Koch <hjk@...utronix.de>,
	Hua Zhong <hzhong@...il.com>,
	"'Martin J. Bligh'" <mbligh@...igh.org>,
	'Linus Torvalds' <torvalds@...l.org>,
	'Jonathan Corbet' <corbet@....net>,
	'Andrew Morton' <akpm@...l.org>,
	"'Michael K. Edwards'" <medwards.linux@...il.com>,
	linux-kernel@...r.kernel.org
Subject: Re: GPL only modules [was Re: [GIT PATCH] more Driver core patches for 2.6.19]

On Thu, Dec 14, 2006 at 06:26:26PM +0000, Alan wrote:
> > Think of uio as just a "class" of driver, like input or v4l.  It's still
> > up to the driver writer to provide a proper bus interface to the
> > hardware (pci, usb, etc.) in order for the device to work at all.
> 
> Understood. That leads me to ask another question of the folks who deal
> with a lot of these cards. How many could reasonably be described by the
> following
> 
> 		bar to map, offset, length, ro/rw, root/user, local-offset
> (x n ?)
> 		interrupt function or null
> 
> It seems if we have a lot of this kind of card that all fit that pattern
> it might actually get more vendors submitting updates if we had a single
> pci driver that took a struct of the above as the device_id field so
> vendors had to write five lines of IRQ code, a struct and update a PCI
> table ? That seems to have mostly worked with all the parallel/serial
> boards.

I think that something like this might work out, and it would be a good
goal to get there eventually.  But I would like to see a few drivers
using the uio core to see where we can consolidate things like this
first.

thanks,

greg k-h
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