* Laurent Pinchart -- Thursday 03 December 2009: > On Wednesday 02 December 2009 18:10:56 Melchior FRANZ wrote: > > I didn't find a reserved keysym for webcam snapshot buttons. > > What about XF86WebCam ?
I saw that one, but the definition says that it's for launching the "camera app", not for taking a snapshot. Sure, I could use that locally, as my keyboard doesn't have a camera launcher key. But this is probably not generally usable. XF86keysym.h:#define XF86XK_WebCam 0x1008FF8F /* Launch web camera app. */ (And I had assumed that xmodmap can't assign keys from XF86keysym.h, but I was wrong. It just has to be the raw value: "keycode 187 = 0x1008FF8F".) > The camera doesn't need to stream video to report button events. Holding the > video device node (/dev/videoX) open is enough. It should be quite trivial to > write an application that opens the device node and then sleeps forever. That would be trivial, indeed. But once open for supporting the snapshot key, it can probably not be opened a second time for actually taking the snapshot. I assume one would first have to close the device, then take the shot, then grab the device again for the next shot. A bit messy. But I don't care much, I just wondered. :-) m. _______________________________________________ Linux-uvc-devel mailing list Linux-uvc-devel@lists.berlios.de https://lists.berlios.de/mailman/listinfo/linux-uvc-devel
