Function IOConnectMapMemory 

pub unsafe extern "C-unwind" fn IOConnectMapMemory(
    connect: io_connect_t,
    memory_type: u32,
    into_task: task_t,
    at_address: *mut mach_vm_address_t,
    of_size: *mut mach_vm_size_t,
    options: IOOptionBits,
) -> kern_return_t

Available on crate feature libc only.

Safety

• at_address must be a valid pointer.
• of_size must be a valid pointer.