IOCTL_GENERICUSBFN_GET_CLASS_INFO - NtDoc
Native API online documentation, based on the System Informer
(formerly Process Hacker) phnt
headers
// genericusbfnioctl.h
// CTL_CODE(0x0022, 0x008, METHOD_OUT_DIRECT, FILE_READ_ACCESS | FILE_WRITE_ACCESS)
#define IOCTL_GENERICUSBFN_GET_CLASS_INFO 0x0022C022
View the official Win32 API referenceNo description available.
This I/O control code (IOCTL) is sent by the user-mode service or application to retrieve information about a device's available pipes as configured in the registry.
NULL.
None.
A USBFN_CLASS_INFORMATION_PACKET that provides information about the available pipes for a device.
The size of a USBFN_CLASS_INFORMATION_PACKET structure.
Irp->IoStatus.Status is set to STATUS_SUCCESS if the request is successful. Otherwise, Status to the appropriate error condition as a NTSTATUS code.
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.
IOCTL_GENERICUSBFN_GET_CLASS_INFO_EX