/**************************************************************************** * drivers/syslog/syslog_devchannel.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 #include #include #include #include #include "syslog.h" #ifdef CONFIG_SYSLOG_CHAR /**************************************************************************** * Pre-processor Definitions ****************************************************************************/ #define OPEN_FLAGS (O_WRONLY) #define OPEN_MODE (S_IROTH | S_IRGRP | S_IRUSR | S_IWUSR) /**************************************************************************** * Private Data ****************************************************************************/ /* Handle to the SYSLOG channel */ FAR static struct syslog_channel_s *g_syslog_dev_channel; /**************************************************************************** * Public Functions ****************************************************************************/ /**************************************************************************** * Name: syslog_dev_channel * * Description: * Configure to use the character device at CONFIG_SYSLOG_DEVPATH as the * SYSLOG channel. * * This tiny function is simply a wrapper around syslog_dev_initialize() * and syslog_channel(). It calls syslog_dev_initialize() to configure * the character device at CONFIG_SYSLOG_DEVPATH then calls * syslog_channel() to use that device as the SYSLOG output channel. * * NOTE interrupt level SYSLOG output will be lost in this case unless * the interrupt buffer is used. * * Input Parameters: * None * * Returned Value: * Zero (OK) is returned on success; a negated errno value is returned on * any failure. * ****************************************************************************/ int syslog_dev_channel(void) { /* Initialize the character driver interface */ g_syslog_dev_channel = syslog_dev_initialize(CONFIG_SYSLOG_DEVPATH, OPEN_FLAGS, OPEN_MODE); if (g_syslog_dev_channel == NULL) { return -ENOMEM; } /* Use the character driver as the SYSLOG channel */ return syslog_channel(g_syslog_dev_channel); } #endif /* CONFIG_SYSLOG_CHAR */