led.h File Reference

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API Description

//Modified: Abhishek Malik <abhishek.malik@intel.com>

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <stdlib.h>
#include <unistd.h>
#include "led.h"

#include "upm_utilities.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);
    return 0;
}

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Data Structures
struct	_led_context

Functions
led_context	led_init (int pin)
led_context	led_init_str (const char *name)
void	led_close (led_context dev)
upm_result_t	led_on (led_context dev)
upm_result_t	led_off (led_context dev)

Typedefs
typedef struct _led_context *	led_context

Function Documentation

led_context led_init

(

int

pin

)

LED Initialization function

Parameters

pin	GPIO pin to use

Returns

The sensor context

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led_context led_init_str

(

const char *

name

)

LED Initialization function

Parameters

name	Linux gpioled device to use

Returns

The sensor context

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void led_close

(

led_context

dev

)

LED Initialization function

Parameters

The	sensor context

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upm_result_t led_on

(

led_context

dev

)

Function to turn LED on

Parameters

The	sensor context

Returns

upm_result_t UPM success/error code

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upm_result_t led_off

(

led_context

dev

)

Function to turn LED off

Parameters

The	sensor context

Returns

upm_result_t UPM success/error code

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Typedef Documentation

typedef struct _led_context * led_context

device context