Re: Runtime driver selection for a certain device

[Grant Likely <grant.likely-s3s/WqlpOiPyB63q8FvJNQ@public.gmane.org>]

On Mon, Apr 18, 2011 at 1:22 PM, Wolfgang Grandegger <wg-5Yr1BZd7O62+XT7JhA+gdA@public.gmane.org> wrote:
> Hallo,
>
> I'm looking for a solution for the following problem:
>
> A device may be served by more than one driver depending on the
> application. Therefore the driver to use should be selectable at
> run-time. Lets imaging 4 serial line devices normally handled by the
> Linux serial driver. One of those needs eventually be handled by another
> driver. How could that be realized, especially together with the device
> tree, which is pretty static. Is there a generic way? The bind/unbind
> functions look promising but it's not possible to register more than one
> driver for a device.

Depends on the bus type.  I would look at registering the device in
such a way that no driver will bind against it, and then change the
configuration from userspace so the one of the drivers will get bound.

g.