Index: uspace/drv/block/usbmast/main.c
===================================================================
--- uspace/drv/block/usbmast/main.c	(revision f75725d583a092c4327162ab45ee9391a8318d8e)
+++ uspace/drv/block/usbmast/main.c	(revision bb1e968e289cb4a68476c89eb07ba8df84454b91)
@@ -140,4 +140,10 @@
 }
 
+static int usbmast_device_removed(usb_device_t *dev)
+{
+	// TODO: Implement me!
+	return EOK;
+}
+
 /** Callback when new device is attached and recognized as a mass storage.
  *
@@ -391,4 +397,5 @@
 	.device_add = usbmast_device_add,
 	.device_remove = usbmast_device_remove,
+	.device_removed = usbmast_device_removed,
 	.device_gone = usbmast_device_gone,
 };