U2C_RESULT U2C_GetSingleIoDirection (
HANDLE hDevice,
ULONG IoNumber,
BOOL* pbOutput
);
The U2C_GetSingleIoDirection function obtains input/output direction of the specified GPIO pin.
- Parameters:
-
| hDevice | Handle to the U2C-12 device. |
| IoNumber | The number of the GPIO pin to obtain direction:
- Numbers 0..7 correspond to Port A pins 0..7
- Numbers 8..15 correspond to Port B pins 0..7
- Number 16..23 correspond to Port C pins 0..7
|
| pbOutput | A pointer to the boolean to be filled with the direction of the GPIO pin.
- *pbOutput = TRUE indicates that the GPIO pin is configured for output
- *pbOutput = FALSE indicates that the GPIO pin is configured for input
|
- Return values:
-
| U2C_SUCCESS | The GPIO pin direction was successfully read. |
| U2C_HARDWARE_NOT_FOUND | U2C-12 device referenced by hDevice handle was not found. |
| U2C_BAD_PARAMETER | IoNumber is out of range. |
|