tuner_close|tuner_close tuner_ioctl|tuner_ioctl tuner_open|tuner_open tuner_getchnlset|tuner_getchnlset turnstile_block|turnstile_block turnstile_changepri|turnstile_changepri turnstile_exit|turnstile_exit turnstile_init|turnstile_init turnstile_lookup|turnstile_lookup turnstile_unsleep|turnstile_unsleep turnstile_wakeup|turnstile_wakeup tunattach|tunattach