2ac8589a25
error: Path relative to repository other than nuttx must begin with the root directory Signed-off-by: Alin Jerpelea <alin.jerpelea@sony.com>
95 lines
3.0 KiB
C
95 lines
3.0 KiB
C
/****************************************************************************
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* apps/examples/pca9635/pca9635_main.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/ioctl.h>
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#include <sys/types.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 <stdio.h>
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#include <nuttx/leds/pca9635pw.h>
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/****************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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#define CONFIG_EXAMPLES_PCA9635_DEVNAME "/dev/leddrv0"
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/****************************************************************************
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* Private Data
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****************************************************************************/
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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/****************************************************************************
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* pca9635_main
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****************************************************************************/
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int main(int argc, FAR char *argv[])
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{
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struct pca9635pw_brightness_s ledbright;
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int led;
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int bright;
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int fd;
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int ret;
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fd = open(CONFIG_EXAMPLES_PCA9635_DEVNAME, O_RDONLY);
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if (fd < 0)
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{
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fprintf(stderr, "ERROR: Failed to open %s: %d\n",
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CONFIG_EXAMPLES_PCA9635_DEVNAME, errno);
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return -1;
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}
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for (; ; )
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{
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for (bright = 0; bright <= 255; bright++)
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{
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for (led = LED_0; led <= LED_15; led++)
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{
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ledbright.led = led;
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ledbright.brightness = bright;
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ret = ioctl(fd, PWMIOC_SETLED_BRIGHTNESS,
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(unsigned long)&ledbright);
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if (ret < 0)
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{
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_err("ERROR: ioctl(PWMIOC_SETLED_BRIGHTNESS) failed: %d\n",
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errno);
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}
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}
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usleep(100);
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}
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}
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close(fd);
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return 0;
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}
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