|
Unix VPS
Support
FAQ
Network
Miscellaneous
|
| DRMHANDLEEVENT(3) | Direct Rendering Manager | DRMHANDLEEVENT(3) |
NAME
drmHandleEvent - read and process pending DRM eventsSYNOPSIS
#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://gitlab.freedesktop.org/mesa/drm/-/issuesSEE ALSO
drm(7), drm-kms(7), drmModePageFlip(3), drmWaitVBlank(3)| September 2012 |
Visit the GSP FreeBSD Man Page Interface.
Output converted with ManDoc.