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May 25th. 2007:
April, 26th. 2006:
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DRMHANDLEEVENT
Section: Direct Rendering Manager (3) Updated: September 2012 Index
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NAME
drmHandleEvent - read and process pending DRM events
SYNOPSIS
#include <xf86drm.h>
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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 http://bugs.freedesktop.org under the "Mesa" product, with "Other" or "libdrm" as the component.
SEE ALSO
drm(7),
drm-kms(7),
drmModePageFlip(3),
drmWaitVBlank(3)
Index
- NAME
-
- SYNOPSIS
-
- DESCRIPTION
-
- RETURN VALUE
-
- REPORTING BUGS
-
- SEE ALSO
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