#include "u3.h"
#include <unistd.h>

int main(int argc, char **argv)
{
  HANDLE hDevice;
  int localID;
  long retV ;
  long pinState;
  int i, j; 


  retV = LJUSB_GetDevCount(U3_PRODUCT_ID) ;
  if (retV == 0) {
    fputs("No available LabJack devices.\n", stderr) ;
    exit(1) ;
  } else {
    printf("# of available LabJack devices: %ld.\n", retV) ;
  }

  //Open first found U3 over USB
  localID = -1;
  if( (hDevice = openUSBConnection(localID)) == NULL) {
    fputs("Unable to open LabJack device.\n", stderr) ;
    exit(1);
  }



  while (1) {
    fputs("Inputs =", stdout) ;
    for (i=0; i<=6; i=i+2) {
      if((retV = eDI(hDevice, 1, i, &pinState)) != 0) {
	fprintf(stderr, "Unable to read input %d\n", i) ;
	exit(1) ;
      }
      fprintf(stdout, " %1d", (int) pinState) ;
    }
    fputc('\n', stdout) ;
    for (i=1; i<=7; i=i+2) {
      usleep(100000) ;
      if((retV = eDO(hDevice, 1, i, 0)) != 0) {
	fprintf(stderr, "Unable to set output %d\n", i) ;
	exit(1) ;
      }
    }
    for (i=1; i<=7; i=i+2) {
      usleep(100000) ;
      if((retV = eDO(hDevice, 1, i, 1)) != 0) {
	fprintf(stderr, "Unable to set output %d\n", i) ;
	exit(1) ;
      }
    }
  }


  closeUSBConnection(hDevice);

  return 0;
}