1.\" 2.\" Copyright (c) 2015 John Baldwin <jhb@FreeBSD.org> 3.\" 4.\" Redistribution and use in source and binary forms, with or without 5.\" modification, are permitted provided that the following conditions 6.\" are met: 7.\" 1. Redistributions of source code must retain the above copyright 8.\" notice, this list of conditions and the following disclaimer. 9.\" 2. Redistributions in binary form must reproduce the above copyright 10.\" notice, this list of conditions and the following disclaimer in the 11.\" documentation and/or other materials provided with the distribution. 12.\" 13.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 14.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 15.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 16.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 17.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 18.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 19.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 20.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 21.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 22.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 23.\" SUCH DAMAGE. 24.\" 25.\" $FreeBSD$ 26.\" 27.Dd October 17, 2016 28.Dt sysdecode_ioctlname 3 29.Os 30.Sh NAME 31.Nm sysdecode_ioctlname 32.Nd lookup name of device control command 33.Sh LIBRARY 34.Lb libsysdecode 35.Sh SYNOPSIS 36.In sysdecode.h 37.Ft const char * 38.Fn sysdecode_ioctlname "unsigned long request" 39.Sh DESCRIPTION 40The 41.Fn sysdecode_ioctlname 42function returns the name of a device control request identified by 43.Fa request . 44A table of names is generated during the build of the 45.Nm sysdecode 46library from system headers that maps device control request values to 47the name of the corresponding C macro. 48.Sh RETURN VALUES 49The 50.Fn sysdecode_ioctlname 51function returns the name of a device control request if 52.Fa request 53is a known value; 54otherwise 55.Dv NULL . 56.Sh SEE ALSO 57.Xr sysdecode 3 58