diff options
| -rw-r--r-- | include/button.h | 10 | ||||
| -rw-r--r-- | include/config.h | 4 |
2 files changed, 8 insertions, 6 deletions
diff --git a/include/button.h b/include/button.h index ec0a7afdc2..3ab5892083 100644 --- a/include/button.h +++ b/include/button.h @@ -88,16 +88,18 @@ int button_disable_gpio(enum button button_type); void button_interrupt(enum gpio_signal signal); /* - * determined which buttons connected ADC + * Is this button using ADC voltages to detect state? * - * @param signal Signal which triggered the interrupt. + * @param gpio The GPIO of interest. + * Returns 1 if button state is detected by ADC, 0 if not. */ int button_is_adc_detected(enum gpio_signal gpio); /* - * distinct which buttons determined by ADC voltage + * Sample the ADC voltage and convert to a physical pressed/not pressed state. * - * @param signal Signal which triggered the interrupt. + * @param gpio ADC detected GPIO. + * Returns the physical state of the button. */ int adc_to_physical_value(enum gpio_signal gpio); diff --git a/include/config.h b/include/config.h index 0d5d10ac90..0e343ec419 100644 --- a/include/config.h +++ b/include/config.h @@ -771,8 +771,8 @@ #undef CONFIG_VOLUME_BUTTONS /* - * The board has volume up and volume down buttons, that are connected to ADC - * pins which pressed and released values are determined by the analog voltage + * The board has buttons that are connected to ADC pins which pressed and + * released values are determined by the analog voltage */ #undef CONFIG_ADC_BUTTONS |