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DRMHANDLEEVENT(3)	   Direct Rendering Manager	     DRMHANDLEEVENT(3)

NAME
       drmHandleEvent -	read and process pending DRM events

SYNOPSIS
       #include	<xf86drm.h>

       int drmHandleEvent(int fd, drmEventContextPtr evctx);

DESCRIPTION
       drmHandleEvent processes	outstanding DRM	events on the DRM
       file-descriptor passed as fd. This function should be called after the
       DRM file-descriptor has polled readable;	it will	read the events	and
       use the passed-in evctx structure to call function pointers with	the
       parameters noted	below:

	   typedef struct _drmEventContext {
	       int version;
	       void (*vblank_handler) (int fd,
				       unsigned	int sequence,
				       unsigned	int tv_sec,
				       unsigned	int tv_usec,
				       void *user_data)
	       void (*page_flip_handler) (int fd,
					  unsigned int sequence,
					  unsigned int tv_sec,
					  unsigned int tv_usec,
					  void *user_data)
	   } drmEventContext, *drmEventContextPtr;

RETURN VALUE
       drmHandleEvent returns 0	on success, or if there	is no data to read
       from the	file-descriptor. Returns -1 if the read	on the file-descriptor
       fails or	returns	less than a full event record.

REPORTING BUGS
       Bugs in this function should be reported	to
       https://bugs.freedesktop.org/enter_bug.cgi?product=DRI&component=libdrm
       under the "DRI" product,	component "libdrm"

SEE ALSO
       drm(7), drm-kms(7), drmModePageFlip(3), drmWaitVBlank(3)

libdrm				September 2012		     DRMHANDLEEVENT(3)

NAME | SYNOPSIS | DESCRIPTION | RETURN VALUE | REPORTING BUGS | SEE ALSO

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