Function rc_button_get_state¶
Defined in File button.h
Function Documentation¶
-
int rc_button_get_state(int chip, int pin)¶
used to query the position of a button.
- Parameters
chip – [in] The gpio chip
pin – [in] The gpio pin for that chip
- Returns
RC_BTN_STATE_PRESSED or RC_BTN_STATE_RELEASED on success, -1 on failure.