IsDeviceHighSpeed routine
The IsDeviceHighSpeed routine returns TRUE if the device is operating at high speed.
Syntax
BOOLEAN IsDeviceHighSpeed( __in_opt PVOID BusContext );
Parameters
- BusContext [in, optional]
-
Handle returned in the BusContext member of the USB_BUS_INTERFACE_USBDI_V1 structure by an IRP_MN_QUERY_INTERFACE request.
Return value
IsDeviceHighSpeed returns TRUE if the USB device is operating at high speed USB 2.0 compliant device; FALSE otherwise.
Remarks
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
);
Requirements
|
Header |
|
|---|---|
|
IRQL | < = DISPATCH_LEVEL |
See also
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Build date: 4/4/2012
