pmf_gpio_set_amp 56 sound/aoa/core/gpio-pmf.c pmf_gpio_set_amp(rt, 0); pmf_gpio_set_amp 68 sound/aoa/core/gpio-pmf.c pmf_gpio_set_amp(rt, (s>>1)&1); pmf_gpio_set_amp 241 sound/aoa/core/gpio-pmf.c .set_speakers = pmf_gpio_set_amp,