gpio_direction_output

The interface has the following parameters.
  • Synopsis: 
    int gpio_direction_output(unsigned gpio, int value)
  • Description: The function is used to set a GPIO interface as output.
  • Parameter:
    • gpio: The GPIO index number.
    • value: The expected level, 0 as low level, 1 as high level
  • Return:
    • Success: 0.
    • Failure: Error code.