$OpenBSD: patch-drivers_blazer_usb_c,v 1.3 2012/01/11 16:01:33 sthen Exp $
--- drivers/blazer_usb.c.orig	Wed Jan 11 09:35:10 2012
+++ drivers/blazer_usb.c	Wed Jan 11 13:21:37 2012
@@ -434,7 +434,9 @@ int blazer_command(const char *cmd, char *buf, size_t 
 
 	case -ETIMEDOUT:	/* Connection timed out */
 	case -EOVERFLOW:	/* Value too large for defined data type */
+#ifdef EPROTO
 	case -EPROTO:		/* Protocol error */
+#endif
 	default:
 		break;
 	}
