You can refer to the below stated example applications for more details on how to use gpio driver.

xgpio_example.c

Contains an example on how to use the XGpio driver directly. This example performs the basic test on the gpio driver. It only uses channel 1 of a GPIO device and assumes that the bit 0 of the GPIO is connected to the LED on the HW board.

For details, see xgpio_example.c.

xgpio_intr_tapp_example.c

Contains an example on how to use the XGpio driver directly. This example shows the usage of the driver in interrupt mode.

For details, see xgpio_intr_tapp_example.c.

xgpio_low_level_example.c

Contains an example on how to use the XGpio driver directly. This example shows the usage of the gpio low level driver and hardware device. It only uses a channel 1 of a GPIO device.

For details, see xgpio_low_level_example.c.

xgpio_tapp_example.c

Contains an example on how to use the XGpio driver directly. This example shows the usage of the axi gpio driver and also assumes that there is a UART Device or STDIO Device in the hardware system.

For details, see xgpio_tapp_example.c.