Re: Shared i2c adapter locking

From: Ben Hutchings
Date: Thu Nov 05 2009 - 08:57:34 EST

On Thu, 2009-11-05 at 14:11 +0100, Jean Delvare wrote:
> What about the following patch?
> From: Jean Delvare <khali@xxxxxxxxxxxx>
> 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@xxxxxxxxxxxx>
> Cc: Ben Hutchings <bhutchings@xxxxxxxxxxxxxx>
Acked-by: ïBen Hutchings <bhutchings@xxxxxxxxxxxxxx>

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 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.

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