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Subject: Re: Shared i2c adapter locking
From: Ben Hutchings <bhutchings@solarflare.com>
To: Jean Delvare <khali@linux-fr.org>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>,
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Organization: Solarflare Communications
Date: Thu, 05 Nov 2009 13:57:24 +0000
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On Thu, 2009-11-05 at 14:11 +0100, Jean Delvare wrote:
[...]
> What about the following patch?
> 
> From: Jean Delvare <khali@linux-fr.org>
> Subject: i2c: Add an interface to lock/unlock I2C bus segment
> 
> Some drivers need to be able to prevent access to an I2C bus segment
> for a specific period of time. Add an interface for them to do so
> without twiddling with i2c-core internals.
> 
> Signed-off-by: Jean Delvare <khali@linux-fr.org>
> Cc: Ben Hutchings <bhutchings@solarflare.com>
Acked-by: Ben Hutchings <bhutchings@solarflare.com>

Presumably this is meant for net-next-2.6, and you'll implement
i2c_{lock,unlock}_adapter() using rt_mutex in your i2c tree?

Ben.

-- 
Ben Hutchings, Senior Software Engineer, Solarflare Communications
Not speaking for my employer; that's the marketing department's job.
They asked us to note that Solarflare product names are trademarked.