1 .. -*- coding: utf-8; mode: rst -*-
3 .. _VIDEO_GET_FRAME_RATE:
18 .. cpp:function:: int ioctl(int fd, int request = VIDEO_GET_FRAME_RATE, unsigned int *rate)
33 - File descriptor returned by a previous call to open().
39 - Equals VIDEO_GET_FRAME_RATE for this command.
45 - Returns the framerate in number of frames per 1000 seconds.
51 This ioctl call asks the Video Device to return the current framerate.
57 On success 0 is returned, on error -1 and the ``errno`` variable is set
58 appropriately. The generic error codes are described at the
59 :ref:`Generic Error Codes <gen-errors>` chapter.