// descriptor to a multiplexor.
func IoctlKCMAttach(fd int, info KCMAttach) error {
	return ioctlPtr(fd, SIOCKCMATTACH, unsafe.Pointer(&info))
}

// IoctlKCMUnattach unattaches a TCP socket file descriptor from a multiplexor.
func IoctlKCMUnattach(fd int, info KCMUnattach) error {
	return ioctlPtr(fd, SIOCKCMUNATTACH, unsafe.Pointer(&info))
}

// IoctlLoopGetStatus64 gets the status of the loop device associated with the