drm_poll — poll method for DRM file
unsigned int drm_poll ( | struct file * filp, |
struct poll_table_struct * wait) ; |
This function must be used by drivers as their .read
#file_operations
method iff they use DRM events for asynchronous signalling to userspace.
Since events are used by the KMS API for vblank and page flip completion this
means all modern display drivers must use it.
See also drm_read
.