1 files changed, 44 insertions, 0 deletions
diff --git a/hw/xfree86/common/xf86Xinput.c b/hw/xfree86/common/xf86Xinput.c
index 6a5d4ee9d..6bf18f148 100644
--- a/hw/xfree86/common/xf86Xinput.c
+++ b/hw/xfree86/common/xf86Xinput.c
@@ -807,4 +807,48 @@ xf86InitValuatorDefaults(DeviceIntPtr dev, int axnum)
     }
 }
 
+
+/**
+ * Deactivate a device. Call this function from the driver if you receive a
+ * read error or something else that spoils your day.
+ * Device will be moved to the off_devices list, but it will still be there
+ * until you really clean up after it.
+ * Notifies the client about an inactive device.
+ * 
+ * @param panic True if device is unrecoverable and needs to be removed.
+ */
+_X_EXPORT void
+xf86DisableDevice(DeviceIntPtr dev, Bool panic)
+{
+    devicePresenceNotify ev;
+    DeviceIntRec dummyDev;
+
+    if(!panic)
+    {
+        DisableDevice(dev);
+    } else
+    {
+        ev.type = DevicePresenceNotify;
+        ev.time = currentTime.milliseconds;
+        ev.devchange = DeviceUnrecoverable;
+        ev.deviceid = dev->id;
+        dummyDev.id = 0;
+        SendEventToAllWindows(&dummyDev, DevicePresenceNotifyMask,
+                (xEvent *) &ev, 1);
+
+        DeleteInputDeviceRequest(dev);
+    }
+}
+
+/**
+ * Reactivate a device. Call this function from the driver if you just found
+ * out that the read error wasn't quite that bad after all.
+ * Device will be re-activated, and an event sent to the client. 
+ */
+_X_EXPORT void
+xf86EnableDevice(DeviceIntPtr dev)
+{
+    EnableDevice(dev);
+}
+
 /* end of xf86Xinput.c */