Merge pull request #993 from Crest/develop

Added support for FreeBSD's libusb reimplementation

src/stlink-lib/logging.c

@@ -66,12 +66,25 @@ int ugly_log(int level, const char *tag, const char *format, ...) {
  *  - LIBUSB_LOG_LEVEL_DEBUG (4)   : debug and informational messages are printed to stderr
  */
 int ugly_libusb_log_level(enum ugly_loglevel v) {
+#ifdef __FreeBSD__
+    // FreeBSD includes its own reimplementation of libusb.
+    // Its libusb_set_debug() function expects a lib_debug_level
+    // instead of a lib_log_level and is verbose enough to drown out
+    // all other output.
     switch (v) {
-    case UDEBUG: return(4);
-    case UINFO: return(3);
-    case UWARN: return(2);
-    case UERROR: return(1);
+    case UDEBUG: return (3); // LIBUSB_DEBUG_FUNCTION + LIBUSB_DEBUG_TRANSFER
+    case UINFO: return (1);  // LIBUSB_DEBUG_FUNCTION only
+    case UWARN: return (0);  // LIBUSB_DEBUG_NO
+    case UERROR: return (0); // LIBUSB_DEBUG_NO
     }
-
-    return(2);
+    return (0);
+#else
+    switch (v) {
+    case UDEBUG: return (4);
+    case UINFO: return (3);
+    case UWARN: return (2);
+    case UERROR: return (1);
+    }
+    return (2);
+#endif
 }