Messages in this thread | ![/](/images/icornerl.gif) | | Date | Mon, 29 Nov 2010 15:28:38 -0700 | From | Jonathan Corbet <> | Subject | Re: [PATCH/RFC] core: add a function to safely try to get device driver owner |
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On Mon, 29 Nov 2010 23:10:50 +0100 (CET) Guennadi Liakhovetski <g.liakhovetski@gmx.de> wrote:
> In my case I have two platform devices: CEU and CSI2. In some cases (with > parallel sensors) CEU operates on its own. With serial (CSI-2) camera > sensors we need the CSI2 driver. So, I want to > try_module_get(csi2_dev->driver->owner) the CSI2 driver from my CEU > driver. This call can Oops if not done safely. Am I missing something? Is > there an easier way to achieve the same?
This looks exactly like what the V4L2 subdev mechanism was meant to do. Is there a reason you can't use that interface?
Thanks,
jon
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