Function IOCreateReceivePort 

pub unsafe extern "C-unwind" fn IOCreateReceivePort(
    msg_type: u32,
    recv_port: *mut mach_port_t,
) -> kern_return_t

Available on crate feature libc only.

Creates and returns a mach port suitable for receiving IOKit messages of the specified type.

In the future IOKit may use specialized messages and ports instead of the standard ports created by mach_port_allocate(). Use this function instead of mach_port_allocate() to ensure compatibility with future revisions of IOKit.

Parameter msgType: Type of message to be sent to this port (kOSNotificationMessageID or kOSAsyncCompleteMessageID)

Parameter recvPort: The created port is returned.

Returns: A kern_return_t error code.

Safety

recv_port must be a valid pointer.