The IsDeviceHighSpeed routine returns TRUE if the device is operating at high speed.
- BusContext [in, optional]
Handle returned in the BusContext member of the USB_BUS_INTERFACE_USBDI_V1 structure by an IRP_MN_QUERY_INTERFACE request.
IsDeviceHighSpeed returns TRUE if the USB device is operating at high speed USB 2.0 compliant device; FALSE otherwise.
The function definition that is provided on this reference page is an example routine whose parameters are just placeholder names. The actual prototype of the function is declared in usbbusif.h as follows:
typedef BOOLEAN (USB_BUSIFFN *PUSB_BUSIFFN_IS_DEVICE_HIGH_SPEED) ( IN PVOID );
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