.. -*- coding: utf-8; mode: rst -*- .. _VIDEO_GET_NAVI: ============== VIDEO_GET_NAVI ============== Name ---- VIDEO_GET_NAVI .. attention:: This ioctl is deprecated. Synopsis -------- .. c:function:: int ioctl(fd, VIDEO_GET_NAVI , struct video_navi_pack *navipack) :name: VIDEO_GET_NAVI Arguments --------- .. flat-table:: :header-rows: 0 :stub-columns: 0 - .. row 1 - int fd - File descriptor returned by a previous call to open(). - .. row 2 - int request - Equals VIDEO_GET_NAVI for this command. - .. row 3 - video_navi_pack_t \*navipack - PCI or DSI pack (private stream 2) according to section ??. Description ----------- This ioctl returns navigational information from the DVD stream. This is especially needed if an encoded stream has to be decoded by the hardware. .. c:type:: video_navi_pack .. code-block::c typedef struct video_navi_pack { int length; /* 0 ... 1024 */ __u8 data[1024]; } video_navi_pack_t; Return Value ------------ On success 0 is returned, on error -1 and the ``errno`` variable is set appropriately. The generic error codes are described at the :ref:`Generic Error Codes ` chapter. .. flat-table:: :header-rows: 0 :stub-columns: 0 - .. row 1 - ``EFAULT`` - driver is not able to return navigational information