$NetBSD$

--- src/ccid_usb.c.orig	2008-02-08 02:16:38.000000000 -0700
+++ src/ccid_usb.c
@@ -880,7 +880,7 @@ int InterruptRead(int reader_index)
 					usbDevice[reader_index].filename, strerror(errno));
 	}
 	else
-		DEBUG_XXD("NotifySlotChange: ", buffer, ret);
+		DEBUG_XXD("NotifySlotChange: ", (const unsigned char *) buffer, ret);
 
 	return ret;
 } /* InterruptRead */
