#include <malloc.h>
#include <unistd.h>
#include <fcntl.h>

typedef struct {
  unsigned hid;
  signed int value;
} hiddev_event;

main(){
  ssize_t bytesread;
  int FILEDES;
  hiddev_event *buffer;

  buffer=(hiddev_event *)malloc(sizeof(hiddev_event));

  FILEDES=open("/dev/usb/hiddev0",O_RDONLY);

  bytesread=1;
  while(bytesread>0){
    bytesread=read(FILEDES,buffer,sizeof(hiddev_event));
    
    if(bytesread!=sizeof(hiddev_event)){
      printf("Error in labtec-hid! Read %d of expected %d bytes!\n",
	     bytesread,sizeof(hiddev_event));
      exit(1);
    }

    if(buffer->hid == 786665) {
      if(buffer->value == 1 ) {
	/*	printf("UP\n"); */
	system("aumix -v +");
      }
    } else if (buffer->hid == 786666) {
      if(buffer->value == 1 ) {
	/*      printf("DOWN\n"); */
	system("aumix -v -");
      }
    } else {
      printf("Unknown event bytes=%d hid=%d value=%d\n",
	     bytesread,buffer->hid,buffer->value);
    }
  }
}