84 lines
2.4 KiB
C
84 lines
2.4 KiB
C
/****************************************************************************
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* apps/examples/foc/foc_device.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 <stdio.h>
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#include <fcntl.h>
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#include <assert.h>
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#include "foc_debug.h"
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#include "foc_device.h"
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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/****************************************************************************
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* Name: foc_device_open
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****************************************************************************/
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int foc_device_open(FAR struct foc_device_s *dev, int id)
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{
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char devpath[32];
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int ret = OK;
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DEBUGASSERT(dev);
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/* Get FOC devpath */
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sprintf(devpath, "%s%d", CONFIG_EXAMPLES_FOC_DEVPATH, id);
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/* Open FOC device */
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dev->fd = open(devpath, 0);
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if (dev->fd <= 0)
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{
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PRINTF("ERROR: open %s failed %d\n", devpath, errno);
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ret = -errno;
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goto errout;
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}
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errout:
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return ret;
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}
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/****************************************************************************
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* Name: foc_device_close
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****************************************************************************/
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int foc_device_close(FAR struct foc_device_s *dev)
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{
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int ret = OK;
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DEBUGASSERT(dev);
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if (dev->fd > 0)
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{
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close(dev->fd);
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}
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return ret;
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}
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