$OpenBSD: patch-drivers_usbhid-ups_c,v 1.7 2014/04/21 11:41:11 sthen Exp $
--- drivers/usbhid-ups.c.orig	Thu Feb 27 21:17:32 2014
+++ drivers/usbhid-ups.c	Mon Apr 21 11:51:56 2014
@@ -941,7 +941,7 @@ void upsdrv_initups(void)
 	   regular expression (USB) or device_path (SHUT) */
 	ret = comm_driver->open(&udev, &curDevice, subdriver_matcher, &callback);
 	if (ret < 1)
-		fatalx(EXIT_FAILURE, "No matching HID UPS found");
+		fatalx(EXIT_FAILURE, "No matching HID UPS found - check permissions on /dev/ugen* and /dev/usb*");
 
 	hd = &curDevice;
 
