.\"- .\" SPDX-License-Identifier: BSD-2-Clause .\" .\" Copyright (c) 2018 Kyle Evans .\" .\" Redistribution and use in source and binary forms, with or without .\" modification, are permitted provided that the following conditions .\" are met: .\" 1. Redistributions of source code must retain the above copyright .\" notice, this list of conditions and the following disclaimer. .\" 2. Redistributions in binary form must reproduce the above copyright .\" notice, this list of conditions and the following disclaimer in the .\" documentation and/or other materials provided with the distribution. .\" .\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND .\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE .\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE .\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE .\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL .\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS .\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) .\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT .\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY .\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF .\" SUCH DAMAGE. .\" .Dd January 6, 2018 .Dt AW_SID 4 .Os .Sh NAME .Nm aw_sid .Nd driver for the SID controller in Allwinner SoC .Sh DESCRIPTION The .Nm device driver provides support for the Allwinner SID (Security ID) controller. This controller provides root security keys that may be used as either a device unique ID or to generate a MAC address. .Sh HARDWARE The .Nm driver supports the SID controller with one of the following compatible strings: .Pp .Bl -bullet -compact .It allwinner,sun4i-a10-sid .It allwinner,sun7i-a20-sid .It allwinner,sun50i-a64-sid .It allwinner,sun8i-a83t-sid .It allwinner,sun8i-h3-sid .El .Sh SYSCTL VARIABLES The following read-only variables are available via .Xr sysctl 8 : .Bl -tag -width indent .It Va dev.aw_sid.rootkey Root security key for this device. .El .Sh HISTORY The .Nm device driver first appeared in .Fx 11.0 . .Sh AUTHORS The .Nm device driver was written by .An Jared McNeill Aq Mt jmcneill@invisible.ca . This manual page was written by .An Kyle Evans Aq Mt kevans@FreeBSD.org .