| /**************************************************************************** |
| * apps/examples/apds9960/apds9960_main.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 <nuttx/config.h> |
| |
| #include <stdio.h> |
| #include <stdlib.h> |
| #include <errno.h> |
| #include <fcntl.h> |
| |
| #include <nuttx/sensors/apds9960.h> |
| |
| /**************************************************************************** |
| * Pre-processor Definitions |
| ****************************************************************************/ |
| |
| #ifndef CONFIG_EXAMPLES_APDS9960_DEVNAME |
| # define CONFIG_EXAMPLES_APDS9960_DEVNAME "/dev/gest0" |
| #endif |
| |
| /**************************************************************************** |
| * Public Functions |
| ****************************************************************************/ |
| |
| /**************************************************************************** |
| * apds9960_main |
| ****************************************************************************/ |
| |
| int main(int argc, FAR char *argv[]) |
| { |
| int fd; |
| int nbytes; |
| char gest; |
| |
| fd = open(CONFIG_EXAMPLES_APDS9960_DEVNAME, O_RDONLY|O_NONBLOCK); |
| if (fd < 0) |
| { |
| int errcode = errno; |
| printf("ERROR: Failed to open %s: %d\n", |
| CONFIG_EXAMPLES_APDS9960_DEVNAME, errcode); |
| goto errout; |
| } |
| |
| while (1) |
| { |
| nbytes = read(fd, (void *)&gest, sizeof(gest)); |
| if (nbytes == 1) |
| { |
| switch (gest) |
| { |
| case DIR_LEFT: |
| printf("LEFT\n"); |
| break; |
| |
| case DIR_RIGHT: |
| printf("RIGHT\n"); |
| break; |
| |
| case DIR_UP: |
| printf("UP\n"); |
| break; |
| |
| case DIR_DOWN: |
| printf("DOWN\n"); |
| break; |
| } |
| } |
| |
| fflush(stdout); |
| |
| /* Wait 10ms */ |
| |
| usleep(10000); |
| } |
| |
| return 0; |
| |
| errout: |
| return EXIT_FAILURE; |
| } |