def input(channel):
"""
Read the value of a GPIO pin.
:param channel: the channel based on the numbering system you have specified
(:py:attr:`GPIO.BOARD`, :py:attr:`GPIO.BCM` or :py:attr:`GPIO.SUNXI`).
:returns: This will return either :py:attr:`0` / :py:attr:`GPIO.LOW` /
:py:attr:`False` or :py:attr:`1` / :py:attr:`GPIO.HIGH` / :py:attr:`True`).
"""
_check_configured(channel) # Can read from a pin configured for output
pin = get_gpio_pin(_mode, channel)
return sysfs.input(pin)
def test_input(fs, test_input, expected):
fs.CreateFile("/sys/class/gpio/gpio0/value")
with open("/sys/class/gpio/gpio0/value", "w") as fp:
fp.write("{0}\n".format(test_input))
assert input(0) == expected
