> XF86AudioMedia for OneKey Theater button. It's correct?
Yes, I'm afraid there is no other keycode in /usr/include/linux/input.h which is more appropriate and < 256. There are a few >= 256, but X cannot deal with them, so they wouldn't work at all then. In particular, KEY_VIDEO is 0x189.
> XF86AudioMedia for OneKey Theater button. It's correct?
Yes, I'm afraid there is no other keycode in /usr/include/ linux/input. h which is more appropriate and < 256. There are a few >= 256, but X cannot deal with them, so they wouldn't work at all then. In particular, KEY_VIDEO is 0x189.