GM_GPSStartTrackingUSB

Note: Currently only Garmin USB devices are supported.

Starts tracking a GPS device connected to a USB port. The GPS will actually be tracked on a background thread, so this function will return quickly and possibly before a connection is established.

If a callback function is provided, it will be called on the GPS thread whenever new GPS locations are received and when the GPS tracking state changes.

Syntax

GM_Error_t32 GM_GPSStartTrackingUSB
( 
GM_GPSCallbackFunc      aCallbackFunc,  // optional callback function
uint32                  aReserved       // 32-bit reserved value (must be 0)
);