DlnGpioPinGetVal() Function

Syntax

C/C++
 DLN_RESULT DlnGpioPinGetVal(
    HDLN handle, 
    uint8_t pin,
    uint8_t* value
 );

The DlnGpioPinGetVal() function retrieves the current value on the specified GPIO pin.

Parameters:

handle
A handle to the DLN-series adapter.
pin
A pin to get the value from.
value
A pointer to an unsigned 8-bit integer. This integer will be filled with the pin value after the function execution.

Results:

Result Description
DLN_RES_SUCCESS The current pin value has been successfully retrieved.
DLN_RES_INVALID_PIN_NUMBER Invalid pin number was specified.
DLN_RES_PIN_NOT_CONNECTED_TO_MODULE The pin is not assigned to the GPIO module of the adapter and its value cannot be retrieved.

This function is defined in the dln_gpio.h file.