#include "CirquePinnacle.h"
bool PinnacleTouch::isHardConfigured();

This function can be used to inform applications about the factory customized hardware configuration.

See Also

Read the section about product labeling in Model Labeling Scheme (specifically the cc point).

Returns

true if a 470K ohm resistor is populated at the junction labeled “R4”; false if no resistor is populated at the “R4” junction. This function will also return false if begin() failed to initialize the trackpad.

This seems to return true when the trackpad is configured for I2C interface.