AC97_ALC650_GPIO_STATUS
snd_ac97_update_bits(ac97, AC97_ALC650_GPIO_STATUS, 0x100,
snd_ac97_write_cache(ac97, AC97_ALC650_GPIO_STATUS,
snd_ac97_read(ac97, AC97_ALC650_GPIO_STATUS) | 0x8000);
snd_ac97_write_cache(ac97, AC97_ALC650_GPIO_STATUS,
(snd_ac97_read(ac97, AC97_ALC650_GPIO_STATUS) | 0x100) & ~0x10);