DlnGpioPinPulldownIsEnabled() Function

The DlnGpioPinPulldownIsEnabled() function informs whether an embedded pull-down resistor is active for the specified pin.

Syntax

C/C++

DLN_RESULT DlnGpioPinPulldownIsEnabled(
   HDLN handle, 
   uint16_t pin, 
   uint8_t* enabled
);

Parameters

handle: A handle to the DLN-series adapter.
pin: The number of the pin from which you want to retrieve information.
enabled: A pointer to an unsigned 8-bit integer. After the function execution, the integer is set to the current state of a pull-down resistor.

Return Value

DLN_RES_SUCCESS: The function successfully retrieved the current state of the pull-down resistor.
DLN_RES_INVALID_PIN_NUMBER: The pin number is not valid. Use the DlnGpioGetPinCount() function to find the maximum possible pin number.
DLN_RES_COMMAND_NOT_SUPPORTED: The DLN adapter does not support pull-down resistors.

Remarks

DLN-1 and DLN-2 adapters do not support pull-down resistors.

The DlnGpioPinPulldownIsEnable() function is declared in the dln_gpio.h file.