Hi all, I was thinking about the sensor binning controls. I have a sensor which can do binning both horizontally and vertically, but the two are connected. So, the sensor supports e.g. 3x1 and 1x3 binning but not 3x3. However, most (I assume) sensors do not have dependencies between the two. The interface which would be provided to the user still should be able to tell what is supported, whether the two are independent or not. I have a few ideas how to achieve this. 1. Implement dependent binning as a menu control. The user will have an easy way to enumerate binning and select it. If horizontal and vertical binning factors are independent, two integer controls are provided. The downside is that there are two ways to do this, and integer to string and back conversions involved. 2. Menu control is used all the time. The benefit is that the user gets a single interface, but the downside is that if there are many possible binning factors both horizontally and vertically, the size of the menu grows large. Typically binning ends at 2 or 4, though. 3. Implement two integer controls. The user is responsible for selecting a valid configuration. A way to enumerate possible values would have to be implemented. One option would be an ioctl but I don't like the idea. Comments are welcome as always. Cheers, -- Sakari Ailus sakari.ailus@xxxxxx -- 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
