OXYGEN_PLAY_ROUTING
oxygen_write16(chip, OXYGEN_PLAY_ROUTING,
oxygen_write16_masked(chip, OXYGEN_PLAY_ROUTING, reg_value,
old_routing = oxygen_read16(chip, OXYGEN_PLAY_ROUTING);
oxygen_write16(chip, OXYGEN_PLAY_ROUTING, new_routing);
oxygen_write8_masked(chip, OXYGEN_PLAY_ROUTING,
oxygen_write8_masked(chip, OXYGEN_PLAY_ROUTING,