def setup(self):
        with lltype.scoped_alloc(snd.seq_tp) as ptr:
            rv = snd.seq_open(ptr, "default", snd.SEQ_OPEN_INPUT,
                              snd.SEQ_NONBLOCK)
            if rv:
                print "Couldn't open sequencer:", snd.strerror(rv)
                return False
            self.seq = ptr[0]

        rv = snd.seq_set_client_name(self.seq, "Dioxide")
        if rv:
            print "Couldn't set client name:", snd.strerror(rv)
            return False

        rv = snd.seq_create_simple_port(self.seq, "Dioxide",
                                        snd.SEQ_PORT_CAP_WRITE |
                                        snd.SEQ_PORT_CAP_SUBS_WRITE,
                                        snd.SEQ_PORT_TYPE_MIDI_GENERIC)
        if rv < 0:
            print "Couldn't open port:", snd.strerror(rv)
            return False

        self.port = rv
        print "Created sequencer port %d" % self.port
        return True