Module libbeaglebone::gpio

The GPIO module.

The BeagleBone Black has 65 GPIO pins, many of which are enabled by the default device tree overlay. However, these pins may need to be explicitly configured as GPIOs by using the config-pin command.

As an example, use the following command to set GPIO 29 : sudo config-pin P9.22 gpio" The above example configure the 22nd pin on P9 (the second header), also known as GPIO_2, as a GPIO. This command works for recent kernel versions. If you wish to configure another pin as a GPIO, substitute it's identifier for P9.22. A convenient list of pin identifiers can be found through an online search of "BeagleBone pinout".

Note: not all pins are available to be set as GPIOs with the default device tree overlay, as they are used for other interfaces such as HDMI. You may need to change the overlay from the default to access these blocked pins.

Structs

GPIO	Represents a pin configured as a GPIO.

Enums

PinDirection	The direction of the pin, which can be either an input or output.
PinState	The logic level of an output GPIO pin, either high or low.