_vs_event
#define QD_GETEVENT _IOR('g', 1, struct _vs_event) /* get oldest event */
struct _vs_event *event;
event = (struct _vs_event *) datap;
event = (struct _vs_event *) GETBEGIN(eq_header[unit]);
memcpy(datap, (void *)event, sizeof(struct _vs_event));
/ sizeof(struct _vs_event) )
struct _vs_event *event;
(struct _vs_event *)((int)eq_header[unit] + sizeof(struct qdinput));
#define QD_GETEVENT _IOR('g', 1, struct _vs_event) /* get oldest event */