Working example code with 3-button combo.

internal/virtualdevice/eventbuffer.go

@@ -0,0 +1,43 @@
+// Code to manage sending events on the Virtual Device
+package virtualdevice
+
+import (
+	"syscall"
+	"time"
+
+	"github.com/holoplot/go-evdev"
+)
+
+type EventBuffer struct {
+	events []*evdev.InputEvent
+	device *evdev.InputDevice
+}
+
+func NewEventBuffer(device *evdev.InputDevice) *EventBuffer {
+	return &EventBuffer{
+		events: make([]*evdev.InputEvent, 0),
+		device: device,
+	}
+}
+
+func (buffer *EventBuffer) AddEvent(event *evdev.InputEvent) {
+	buffer.events = append(buffer.events, event)
+}
+
+func (buffer *EventBuffer) SendEvents() {
+	eventTime := syscall.NsecToTimeval(int64(time.Now().Nanosecond()))
+
+	for i := 0; i < len(buffer.events); i++ {
+		buffer.events[i].Time = eventTime
+		buffer.device.WriteOne(buffer.events[i])
+	}
+
+	buffer.device.WriteOne(&evdev.InputEvent{
+		Time:  eventTime,
+		Type:  evdev.EV_SYN,
+		Code:  evdev.SYN_REPORT,
+		Value: 0,
+	})
+
+	buffer.events = make([]*evdev.InputEvent, 0)
+}