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examples: Cleaned up C examples.

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This commit cleans up multiple items with the UPM C example source.

    * Switch from usleep and sleep to upm_delay* methods
    * Include a mraa_init and check return value prior to using sensor
    * All example mains now return
    * Added include for mraa.h and upm_utilites.h to all examples
    * Reformatted/removed tabs
    * Updated author line for the examples I wrote

Signed-off-by: Noel Eck <noel.eck@intel.com>
This commit is contained in:
Noel Eck
2016-09-19 15:45:22 -07:00
parent 2ccdc3e673
commit 324af8fc92
35 changed files with 775 additions and 482 deletions
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36
examples/c/led.c
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@ -7,18 +7,28 @@
#include <unistd.h>
#include "led.h"
void main(void)
#include "upm_utilities.h"
#include "mraa.h"
int main(void)
{
led_context dev = led_init(2);
while(1){
if(led_on(dev) != UPM_SUCCESS){
printf("problem turning the LED on\n");
}
upm_delay(1);
if(led_off(dev) != UPM_SUCCESS){
printf("problem turning the LED off\n");
}
upm_delay(1);
}
led_close(dev);
if (mraa_init() != MRAA_SUCCESS)
{
perror("Failed to initialize mraa\n");
return -1;
}
led_context dev = led_init(2);
while(1){
if(led_on(dev) != UPM_SUCCESS){
printf("problem turning the LED on\n");
}
upm_delay(1);
if(led_off(dev) != UPM_SUCCESS){
printf("problem turning the LED off\n");
}
upm_delay(1);
}
led_close(dev);
return 0;
}