+enum {
+ DEBUG_SYSTEM = 0,
+ DEBUG_DEVICE = 1,
+ DEBUG_INTERFACE = 2,
+ DEBUG_WIRELESS = 3,
+};
+
+#ifdef DEBUG
+#define DPRINTF(format, ...) fprintf(stderr, "%s(%d): " format, __func__, __LINE__, ## __VA_ARGS__)
+#define D(level, format, ...) do { \
+ if (debug_mask & (1 << (DEBUG_ ## level))) \
+ DPRINTF(format, ##__VA_ARGS__); \
+ } while (0)
+#else
+#define DPRINTF(format, ...) no_debug(0, format, ## __VA_ARGS__)
+#define D(level, format, ...) no_debug(DEBUG_ ## level, format, ## __VA_ARGS__)
+#endif