Start moving uLogitech files into libratbag proper

Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>

src/debug.h

@@ -0,0 +1,59 @@
+/*
+ * debug definitions.
+ *
+ * Copyright 2013 Benjamin Tissoires <benjamin.tissoires@gmail.com>
+ * Copyright 2013 Red Hat, Inc
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+#ifndef DEBUG_H
+#define DEBUG_H
+
+#define DEBUG_LVL	0
+
+#if DEBUG_LVL > 0
+static void pr_buffer(__u8 *buffer, int size) {
+	char *sep = "";
+	int i;
+
+	if (size < 0)
+		return;
+
+	for (i = 0; i < size; ++i) {
+		printf("%s%02x", sep, buffer[i] & 0xFF);
+		sep = " ";
+	}
+
+	printf("\n");
+}
+#else
+#define pr_buffer(buffer, size) do {} while (0)
+#endif
+
+#if DEBUG_LVL > 0
+#define pr_dbg(fmt, arg...)		\
+	printf(fmt, ##arg)
+#else /* DEBUG_LVL > 0 */
+#define pr_dbg(fmt, arg...)		\
+	do {} while(0);
+#endif /* DEBUG_LVL > 0 */
+
+#endif /* DEBUG_H */