U2C_RESULT U2C_Stop(
      HANDLE hDevice
);
The U2C_Stop() function generates stop condition on I2C bus. You can also use this function to generate repeated stop condition.
Parameters:
- hDevice
- Handle to the U2C-12 device. 
Return values:
U2C_SUCCESS
Stop condition was successfully generated.
U2C_HARDWARE_NOT_FOUND
U2C-12 device referenced by hDevice handle was not found.