1.\"- 2.\" Copyright (c) 2023 Bjoern A. Zeeb 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 April 18, 2023 28.Dt MT7921 4 29.Os 30.Sh NAME 31.Nm mt7921 32.Nd MediaTek IEEE 802.11ax wireless network driver 33.Sh SYNOPSIS 34The driver will auto-load without any user interaction using 35.Xr devmatch 8 36if enabled in 37.Xr rc.conf 5 . 38.Pp 39Only if auto-loading is explicitly disabled, place the following 40lines in 41.Xr rc.conf 5 42to manually load the driver as a module at boot time: 43.Bd -literal -offset indent 44kld_list="${kld_list} if_mt7921" 45.Ed 46.Pp 47The driver should automatically load any 48firmware needed for the particular chipset. 49.Pp 50It is discouraged to load the driver from 51.Xr loader 8 . 52.Sh DESCRIPTION 53The 54.Nm 55driver is derived from MediaTek's Linux mt76 driver and provides support for 56the following chipsets: 57.Pp 58.Bl -tag -width Ds -offset indent -compact 59.It MediaTek MT7921E (PCIe) 60.El 61.Pp 62This driver requires firmware to be loaded before it will work. 63The package 64.Pa wifi-firmware-mt76-kmod 65from the 66.Pa ports/net/wifi-firmware-mt76-kmod 67port needs to be installed before the driver is loaded. 68Otherwise no 69.Xr wlan 4 70interface can be created using 71.Xr ifconfig 8 . 72.Pp 73The driver uses the 74.\" No LinuxKPI man pages so no .Xr here. 75.Em linuxkpi_wlan 76and 77.Em linuxkpi 78compat framework to bridge between the Linux and 79native 80.Fx 81driver code as well as to the native 82.Xr net80211 4 83wireless stack. 84.Pp 85While 86.Nm 87supports all 802.11 a/b/g/n/ac and ax 88the compatibility code currently only supports 802.11 a/b/g modes. 89Support for 802.11 n/ac is to come. 90.Sh BUGS 91Certainly. 92.Sh SEE ALSO 93.Xr wlan 4 , 94.Xr ifconfig 8 , 95.Xr wpa_supplicant 8 96.Sh HISTORY 97The 98.Nm 99driver first appeared in 100.Fx 14.0 . 101