[Gumstix-users] compile error, says function is undeclared when baking..

[Pierre J. <pie...@gm...>]

I'm directly working off code i got from posts in here.
My issue is that when i bitbake i get 

ERROR: function do_compile failed
In function `main':

| control.c:(.text+0x20): undefined reference to `I2cSetSlaveAddress'
| control.c:(.text+0x30): undefined reference to `I2C_IO_GetGPIO'
| collect2: ld returned 1 exit status


but here are the includes and the main in my control.c:



#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/mman.h>
#include <termios.h>
#include <fcntl.h>


#include "i2c-io-api.h"
#include "i2c-api.h" // this is where the trouble file is located
#include "i2c-io.h"//added by Pierre
#include "i2c.h"// added by Pierre

#include "i2c-dev.h"
#include <getopt.h>
#include <errno.h>
#include <signal.h>
#include <unistd.h>
#include <sys/timeb.h>
#include "AvrInfo.h"
#include "BootLoader-api.h"
#include "Log.h" 

int main( void )
{
	int i2cDev;
	uint8_t  pinVal;
	
	i2cDev = open( "/dev/i2c-0", O_RDWR );
	I2cSetSlaveAddress( i2cDev, 0x0b, I2C_USE_CRC );
	
	if ( I2C_IO_GetGPIO( i2cDev, 1, &pinVal ))
	{
		printf( "Read %d\n", pinVal );
		}
	else
	{
		printf( "Error calling I2C_IO_GetGPIO\n" );
		} 
	
	printf("Something works\n");
	printf("Something still works\n");
	return 0;
}


Any idea of what is going wrong? 
Thanks!

-P

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