Scroll to navigation

DRM_VBLANK_COUNT(9) DRM Core DRM_VBLANK_COUNT(9)

NAME

drm_vblank_count - retrieve “cooked” vblank counter value

SYNOPSIS

u32 drm_vblank_count(struct drm_device * dev, int crtc);

ARGUMENTS

dev
DRM device
crtc
which counter to retrieve

DESCRIPTION

Fetches the “cooked” vblank count value that represents the number of vblank events since the system was booted, including lost events due to modesetting activity.

RETURNS

The software vblank counter.

AUTHORS

Jesse Barnes <jesse.barnes@intel.com>
 
Intel Corporation,
Initial version
Laurent Pinchart <laurent.pinchart@ideasonboard.com>
 
Ideas on board SPRL,
Driver internals
Daniel Vetter <daniel.vetter@ffwll.ch>
 
Intel Corporation,
Contributions all over the place

COPYRIGHT

May 2018 Kernel Hackers Manual 3.16