FTR_GPIO 161 sound/aoa/core/gpio-feature.c FTR_GPIO(headphone, 0); FTR_GPIO 162 sound/aoa/core/gpio-feature.c FTR_GPIO(amp, 1); FTR_GPIO 163 sound/aoa/core/gpio-feature.c FTR_GPIO(lineout, 2); FTR_GPIO 164 sound/aoa/core/gpio-feature.c FTR_GPIO(master, 3);