linux-kernel - Re: [PATCH] spi: Force the registration of the spidev devices

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Date:	Sun, 4 May 2014 23:21:47 -0500
From:	Maxime Ripard <maxime.ripard@...e-electrons.com>
To:	Mark Brown <broonie@...nel.org>
Cc:	linux-spi@...r.kernel.org, linux-kernel@...r.kernel.org,
	Alexandre Belloni <alexandre.belloni@...e-electrons.com>
Subject: Re: [PATCH] spi: Force the registration of the spidev devices

On Fri, May 02, 2014 at 10:40:48AM -0700, Mark Brown wrote:
> > i2c-dev works great in these cases, because you always have access to
> > all the bus, and all the devices, except if the device is already used
> > by someone. The patch I suggested is an attempt to mimic this.
> 
> It seems better to implement something like this at the device model
> level, provide a way to have a default UIO driver for anything on a
> given bus.  I don't see anything bus specific apart from saying what the
> default driver to use is and it avoids the icky code fiddling about with
> what devices are bound and the races that might be involved duplicated
> in individual buses.

Hmmm, yes, that's probably a great long-term way of dealing with this,
but I don't see it happening soon.

Maxime

-- 
Maxime Ripard, Free Electrons
Embedded Linux, Kernel and Android engineering
http://free-electrons.com

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