Lines Matching refs:framebuffer

18 Some video output devices can overlay a framebuffer image onto the
45 Contrary to the *Video Overlay* interface the framebuffer is normally
47 accessible as a framebuffer device (``/dev/fbN``). Given a V4L2 device,
48 applications can find the corresponding framebuffer device by calling
50 other information, the physical address of the framebuffer in the
52 The framebuffer device ioctl ``FBIOGET_FSCREENINFO`` returns the same
58 The width and height of the framebuffer depends on the current video
60 (or any other ioctl which would imply a framebuffer size change) with an
61 ``EBUSY`` error code until all applications closed the framebuffer device.
63 Example: Finding a framebuffer device for OSD
102 	    /* Apparently not a framebuffer device. */
109     /* fb_fd is the file descriptor of the framebuffer device
117 rectangle selects a subsection of the framebuffer image to be overlaid,
125 source rectangle, its position in the framebuffer and the
157 framebuffer interface of the driver may support the ``FBIOBLANK`` ioctl.