[/ / Copyright (c) 2003-2016 Christopher M. Kohlhoff (chris at kohlhoff dot com) / / Distributed under the Boost Software License, Version 1.0. (See accompanying / file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) /] [section:IoControlCommand I/O control command requirements] In the table below, `X` denotes an I/O control command class, `a` denotes a value of `X`, and `u` denotes an identifier. [table IoControlCommand requirements [[expression] [type] [assertion/note\npre/post-conditions]] [ [`a.name();`] [`int`] [ Returns a value suitable for passing as the /request/ argument to __POSIX__ __ioctl__ (or equivalent). ] ] [ [`a.data();`] [a pointer, convertible to `void*`] [ ] ] ] [endsect]