98 lines
3.2 KiB
C
98 lines
3.2 KiB
C
/****************************************************************************
|
|
* examples/hts221_reader/hts221_reader_main.c
|
|
*
|
|
* Copyright (C) 2020 Gregory Nutt. All rights reserved.
|
|
* Author: Mateusz Szafoni <raiden00@railab.me>
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
*
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in
|
|
* the documentation and/or other materials provided with the
|
|
* distribution.
|
|
* 3. Neither the name NuttX nor the names of its contributors may be
|
|
* used to endorse or promote products derived from this software
|
|
* without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
|
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
|
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
|
|
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
|
|
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
|
|
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
|
|
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
|
|
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
|
|
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
|
|
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
|
* POSSIBILITY OF SUCH DAMAGE.
|
|
*
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* Included Files
|
|
****************************************************************************/
|
|
|
|
#include <nuttx/config.h>
|
|
|
|
#include <sys/ioctl.h>
|
|
#include <stdlib.h>
|
|
#include <stdio.h>
|
|
#include <errno.h>
|
|
#include <unistd.h>
|
|
|
|
#include <debug.h>
|
|
|
|
#include <nuttx/sensors/hts221.h>
|
|
|
|
/****************************************************************************
|
|
* Public Functions
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* lsm303_reader_main
|
|
****************************************************************************/
|
|
|
|
int main(int argc, FAR char *argv[])
|
|
{
|
|
FILE *sensor;
|
|
hts221_conv_data_t sensor_data;
|
|
int ret;
|
|
|
|
sensor = fopen("/dev/hts2210", "r");
|
|
if (sensor == NULL)
|
|
{
|
|
printf("Unable to create file\n");
|
|
return -ENOENT;
|
|
}
|
|
|
|
ret = ioctl(fileno(sensor), SNIOC_START, 0);
|
|
if (ret < 0)
|
|
{
|
|
printf("IOCTL SNIOC_START failed %d\n", ret);
|
|
}
|
|
|
|
for (; ; )
|
|
{
|
|
ret = ioctl(fileno(sensor), SNIOC_READ_CONVERT_DATA,
|
|
(unsigned long)&sensor_data);
|
|
if (ret < 0)
|
|
{
|
|
printf("IOCTL READ failed %d\n", ret);
|
|
}
|
|
|
|
printf("temp: %d, hum: %d\n",
|
|
sensor_data.temperature,
|
|
sensor_data.humidity);
|
|
|
|
sleep(2);
|
|
}
|
|
|
|
fclose(sensor);
|
|
return EXIT_SUCCESS;
|
|
}
|