IOCTL_GENERICUSBFN_ACTIVATE_USB_BUS IOCTL (genericusbfnioctl.h)
This I/O control code (IOCTL) is sent by a user-mode service or application to notify GenericUSBFn.sys to activate the Universal Serial Bus (USB). Once activated, the bus is prepared to process bus events and handle traffic.
Input buffer
NULL.
Input buffer length
None.
Output buffer
NULL.
Output buffer length
None.
Remarks
If this I/O control code (IOCTL) is being called synchronously, set the lpOverlapped parameter to NULL. If this IOCTL is called asynchronously, assign the lpOverlapped parameter to a pointer to an OVERLAPPED structure that contains a handle to an event object. The event objects signal when the operation is completed.
The return value is a BOOL value that indicates success or failure of the operation. TRUE indicates success, FALSE otherwise.
Requirements
| Requirement | Value |
|---|---|
| Header | genericusbfnioctl.h (include GenericUsbFnIoctl.h) |