Hi Guennadi, I was reading the latest soc_camera framework documentation (see [1]). I can see on line 71 to 73 the following text: " .add and .remove methods are called when a sensor is attached to or detached from the host, apart from performing host-internal tasks they shall also call sensor driver's .init and .release methods respectively." Now, I was puzzled on seeing that none of the soc_camera bridge drivers ( like PXA and SH Mobile) call the sensor's .init and .release from their .add and .remove methods respectively. Also I cannot trace these calls in soc_camera.c layer Actually, I am working on a camera sensor that requires certain patches to be written to it before it can start working: - Now, if I write these patches in the _probe_ of the sensor driver (similar to the ST VS6624 driver here : [2]), my sensor can work well for the 1st run of the user-space application. But, if I launch the application again the patches need to be written to the sensor again as I have implemented an 'icl->power' routine which basically turns ON and OFF the sensor by toggling its CE (chip enable pin). - As the soc_camera layer provides no explicit call to the camera sensor driver when an _open_ is invoked from the userland, when and how should I write the patch registers. I can only think of using the .init routine to initialize the sensor patch registers in such a case. Please share your views on the same. [1] http://lxr.free-electrons.com/source/Documentation/video4linux/soc-camera.txt [2] http://www.spinics.net/lists/linux-media/msg37805.html Regards, Bhupesh -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
