IOCTL_GENERICUSBFN_GET_PIPE_STATE IOCTL (genericusbfnioctl.h)
This I/O control code (IOCTL) is sent by a user-mode service or application to get the state of the specified Universal Serial Bus (USB) pipe.
Input buffer
A USBFNPIPEID that specifies the ID of the pipe to retrieve state information for.
Input buffer length
The size of a USBFNPIPEID.
Output buffer
Contains a BOOLEAN value that specifies whether the specified pipe is stalled. A value of TRUE if the specified pipe is stalled; FALSE if otherwise.
Output buffer length
The size of the output buffer in bytes.
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) |
See also
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