USBD_UrbFree - NtDoc
Native API online documentation, based on the System Informer
(formerly Process Hacker) phnt
headers
// usbdlib.h
VOID USBD_UrbFree(
[in] USBD_HANDLE USBDHandle,
[in] PURB Urb
);
View the official Windows Driver Kit DDI referenceNo description available.
The USBD_UrbFree routine releases the URB that is allocated by USBD_UrbAllocate, USBD_IsochUrbAllocate, USBD_SelectConfigUrbAllocateAndBuild, or USBD_SelectInterfaceUrbAllocateAndBuild.
USBDHandle [in]USBD handle that is retrieved by the client driver in a previous call to the USBD_CreateHandle routine.
Urb [in]Pointer to the URB structure to be released.
You must call USBD_UrbFree to release the URB allocated by USBD_UrbAllocate after the request is complete.
Failure to call USBD_UrbFree can cause a memory leak.
For a code example, see USBD_UrbAllocate.