PATHHardware Documentation > USB Devices > Mac OS USB DDK API Reference

Getting The Bus Reference For a Device

The USBDeviceRefToBusRef function returns a pointer to the bus reference for the device specified with a device reference.



 
OSStatus USBDeviceRefToBusRef (

                     USBDeviceRef *deviceRef,

                     USBBusRef *busRef);

--> deviceRef: A pointer to an already established device reference for which you want the bus reference.
<-- busRef: A pointer to the bus reference.