Subversion Repositories or1k_old

static volatile char *data = (char *)(0x20);

static volatile char *control = (char *)(0x24);

extern void _outb (volatile char*, unsigned char);

extern unsigned char _inb (volatile char*);

static unsigned char

 read_scc_reg (unsigned char n)

{

  _outb (control, n);

  return _inb(control);

}

static void write_scc_data (unsigned char n)

{

  _outb (data, n);

}

int

_write (int dev, void *buf, unsigned int len)

{

  int i;

  char *string = (char*)buf;

  for (i = 0; i < len; i++)

    {

      int j;

      for (j = 0 ; j < 5000; j++)

        ;

      write_scc_data (string[i]);

    }

  return len;

}