The DlnGpioPinPullupIsEnabled() function informs whether an embedded pull-up resistor is currently enabled for the specified pin.
A handle to the DLN-series adapter.
A number of the pin from which you want to retrieve information.
A pointer to an unsigned 8-bit integer. After the function execution, this integer is filled with current state of a pull-up resistor. The following values are available:
The pull-up resistor is active.
The pull-up resistor is not active.
The function successfully retrieved the current state of the pull-up resistor.
The pin number is not valid. Use the DlnGpioGetPinCount() function to find the maximum possible pin number.
By default, the pull-up resistors are active for GPIO pins. You can activate it manually by using the DlnGpioPinPullupEnable() function. To deactivate the Pull-up/Pull-down Resistors for GPIO pins, use the DlnGpioPinPullupDisable() function.
The DlnGpioPinPullupIsEnabled() function is declared in the dln_gpio.h file.