How to distinguish between USB/BT for same device

[MarkaRagnos0815]

I test a bit using PS4 Controller via USB and BT (Windows).
I am able to connect via USB and BT at the same time.

the hid_device_info gives to different paths, except for the serial_number and interface_number i get teh same values.
For blutooth the serial number is empty. (I guess serial number is the same)

Is there any way to check if these two devices are the same?

[JoergAtGithub]

On Windows you can use the the

hidapi/windows/hidapi_winapi.h

Lines 39 to 54 in ff67c77

	/** @brief Get the container ID for a HID device.
	Since version 0.12.0, @ref HID_API_VERSION >= HID_API_MAKE_VERSION(0, 12, 0)
	This function returns the `DEVPKEY_Device_ContainerId` property of
	the given device. This can be used to correlate different
	interfaces/ports on the same hardware device.
	@ingroup API
	@param dev A device handle returned from hid_open().
	@param container_id The device's container ID on return.
	@returns
	This function returns 0 on success and -1 on error.
	*/
	int HID_API_EXPORT_CALL hid_winapi_get_container_id(hid_device *dev, GUID *container_id);

[MarkaRagnos0815]

Thanks for sharing. Found a different solution by reading the Mac address from USB. Bt seems to have a serial number. the usb Mac address is the same as USB serial number. So I am able to find same device via vendor, product and serial number

[Youw]

What about hid_bus_type ? Should give you USB or BT.