Hello, > I've got a UVC webcam (logitech sphere) over here let me know if I can help > with testing. Also talking about the logitech sphere, it has the ability to > turn left/right and up/down, currently it uses custom IOCTL's for this and so > do some other drivers which can drive camera's with the same feature, I believe > we need to add some standard ioctl's for this (including one to query for this > capability), so that userspace apps can use this feature without having to > write support for it for each driver seperately. > Hi, A bit OT, and I apologize. Are ioctls still the preferred way to pass complex data between the kernel and user space? In my embedded work I try to use sysfs wherever possible, but for more complicated transactions still use ioctls because the single-parameter nature of sysfs can be limiting. This just came to mind when Hans mentioned defining a standard interface. Please don't misread this as a suggestion. I'm just trying to get a feel for how people are doing things these days. regards, Ben
