$OpenBSD: patch-drivers_blazer_usb_c,v 1.2 2011/06/02 10:37:08 sthen Exp $
--- drivers/blazer_usb.c.orig	Tue May 31 11:36:49 2011
+++ drivers/blazer_usb.c	Thu Jun  2 09:20:58 2011
@@ -396,7 +396,9 @@ 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;
 	}
