Yea, I think ioctl is probably the most elegant solution. The fact that hardware has a wide-variation in properties, requests, etc. mean some part of the inter

Yea, I think ioctl is probably the most elegant solution. The fact that hardware has a wide-variation in properties, requests, etc. mean some part of the interface is going to be inelegant and case dependent. ioctl at least puts all that variation behind a single system call.