drm_vblank_count (9)

Retrieve cooked vblank counter value

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  4. drm_vblank_count: Retrieve cooked vblank counter value
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  2. Packages
  3. linux-manual-3.16
  4. 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 <[email protected]>

Intel Corporation,

Initial version

Laurent Pinchart <[email protected]>

Ideas on board SPRL,

Driver internals

Daniel Vetter <[email protected]>

Intel Corporation,

Contributions all over the place

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