1 .. -*- coding: utf-8; mode: rst -*-
3 .. _VIDEO_CLEAR_BUFFER:
18 .. cpp:function:: int ioctl(fd, int request = VIDEO_CLEAR_BUFFER)
33 - File descriptor returned by a previous call to open().
39 - Equals VIDEO_CLEAR_BUFFER for this command.
45 This ioctl call clears all video buffers in the driver and in the
52 On success 0 is returned, on error -1 and the ``errno`` variable is set
53 appropriately. The generic error codes are described at the
54 :ref:`Generic Error Codes <gen-errors>` chapter.