rem: ssize_t err;
add: status_t err;
context: console_write(void * cookie, off_t pos, const void *buffer, size_t *len){	ssize_t err;//	dprintf("console_write: entry, len = %d\n", len);	mutex_lock(&console.lock);	err = _console_write(buffer, len);//	update_cursor(x, y);	repaint();	mutex_unlock(&console.lock);	return err;}