def add_event_callback(channel, callback):
ch_info = _channel_to_info(channel, need_gpio=True)
if not callable(callback):
raise TypeError("Parameter must be callable")
if _app_channel_configuration(ch_info) != IN:
raise RuntimeError("You must setup() the GPIO channel as an "
"input first")
if not event.gpio_event_added(ch_info.gpio):
raise RuntimeError("Add event detection using add_event_detect first "
"before adding a callback")
event.add_edge_callback(ch_info.gpio, lambda: callback(channel))
def add_event_callback(channel, callback):
if not callable(callback):
raise TypeError("Parameter must be callable")
gpio = _get_gpio_number(channel)
if _check_pin_setup(gpio) != IN:
raise RuntimeError("You must setup() the GPIO channel as an "
"input first")
if not event.gpio_event_added(gpio):
raise RuntimeError("Add event detection using add_event_detect first "
"before adding a callback")
event.add_edge_callback(gpio, lambda: callback(channel))