96 lines
3.1 KiB
C
96 lines
3.1 KiB
C
/****************************************************************************
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* drivers/syslog/syslog_devchannel.c
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership. The
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* ASF licenses this file to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance with the
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* License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*
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****************************************************************************/
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#include <sys/stat.h>
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#include <fcntl.h>
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#include <errno.h>
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#include <nuttx/syslog/syslog.h>
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#include "syslog.h"
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#ifdef CONFIG_SYSLOG_CHAR
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/****************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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#define OPEN_FLAGS (O_WRONLY)
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#define OPEN_MODE (S_IROTH | S_IRGRP | S_IRUSR | S_IWUSR)
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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/****************************************************************************
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* Name: syslog_dev_channel
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*
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* Description:
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* Configure to use the character device at CONFIG_SYSLOG_DEVPATH as the
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* SYSLOG channel.
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*
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* This tiny function is simply a wrapper around syslog_dev_initialize()
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* and syslog_channel(). It calls syslog_dev_initialize() to configure
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* the character device at CONFIG_SYSLOG_DEVPATH then calls
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* syslog_channel() to use that device as the SYSLOG output channel.
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*
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* NOTE interrupt level SYSLOG output will be lost in this case unless
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* the interrupt buffer is used.
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*
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* Input Parameters:
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* None
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*
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* Returned Value:
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* A pointer to the new SYSLOG channel; NULL is returned on any failure.
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*
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****************************************************************************/
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FAR struct syslog_channel_s *syslog_dev_channel(void)
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{
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FAR struct syslog_channel_s *dev_channel;
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/* Initialize the character driver interface */
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dev_channel = syslog_dev_initialize(CONFIG_SYSLOG_DEVPATH,
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OPEN_FLAGS, OPEN_MODE);
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if (dev_channel == NULL)
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{
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return NULL;
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}
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/* Use the character driver as the SYSLOG channel */
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if (syslog_channel(dev_channel) != OK)
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{
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syslog_dev_uninitialize(dev_channel);
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dev_channel = NULL;
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}
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return dev_channel;
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}
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#endif /* CONFIG_SYSLOG_CHAR */
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