modify nuttx bug of lack of files

2021-06-11 11:25:07 +08:00
parent 4a7f51a5e9
commit 6d0f2ca39a
6752 changed files with 1528133 additions and 0 deletions
@@ -0,0 +1,74 @@
+/****************************************************************************
+ * net/netdev/netdev_findbyname.c
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.  The
+ * ASF licenses this file to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance with the
+ * License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
+ * License for the specific language governing permissions and limitations
+ * under the License.
+ *
+ ****************************************************************************/
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <nuttx/config.h>
+
+#include <string.h>
+#include <errno.h>
+
+#include <nuttx/net/netdev.h>
+
+#include "utils/utils.h"
+#include "netdev/netdev.h"
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: netdev_findbyname
+ *
+ * Description:
+ *   Find a previously registered network device using its assigned
+ *   network interface name
+ *
+ * Input Parameters:
+ *   ifname The interface name of the device of interest
+ *
+ * Returned Value:
+ *  Pointer to driver on success; null on failure
+ *
+ ****************************************************************************/
+
+FAR struct net_driver_s *netdev_findbyname(FAR const char *ifname)
+{
+  FAR struct net_driver_s *dev;
+
+  if (ifname)
+    {
+      net_lock();
+      for (dev = g_netdevices; dev; dev = dev->flink)
+        {
+          if (strcmp(ifname, dev->d_ifname) == 0)
+            {
+              net_unlock();
+              return dev;
+            }
+        }
+
+      net_unlock();
+    }
+
+  return NULL;
+}