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.Dd April 18, 2023 26.Dt MT7921 4 27.Os 28.Sh NAME 29.Nm mt7921 30.Nd MediaTek IEEE 802.11ax wireless network driver 31.Sh SYNOPSIS 32The driver will auto-load without any user interaction using 33.Xr devmatch 8 34if enabled in 35.Xr rc.conf 5 . 36.Pp 37Only if auto-loading is explicitly disabled, place the following 38lines in 39.Xr rc.conf 5 40to manually load the driver as a module at boot time: 41.Bd -literal -offset indent 42kld_list="${kld_list} if_mt7921" 43.Ed 44.Pp 45The driver should automatically load any 46firmware needed for the particular chipset. 47.Pp 48It is discouraged to load the driver from 49.Xr loader 8 . 50.Sh DESCRIPTION 51The 52.Nm 53driver is derived from MediaTek's Linux mt76 driver and provides support for 54the following chipsets: 55.Pp 56.Bl -tag -width Ds -offset indent -compact 57.It MediaTek MT7921E (PCIe) 58.El 59.Pp 60This driver requires firmware to be loaded before it will work. 61The package 62.Pa wifi-firmware-mt76-kmod 63from the 64.Pa ports/net/wifi-firmware-mt76-kmod 65port needs to be installed before the driver is loaded. 66Otherwise no 67.Xr wlan 4 68interface can be created using 69.Xr ifconfig 8 . 70.Pp 71The driver uses the 72.\" No LinuxKPI man pages so no .Xr here. 73.Em linuxkpi_wlan 74and 75.Em linuxkpi 76compat framework to bridge between the Linux and 77native 78.Fx 79driver code as well as to the native 80.Xr net80211 4 81wireless stack. 82.Pp 83While 84.Nm 85supports all 802.11 a/b/g/n/ac and ax 86the compatibility code currently only supports 802.11 a/b/g modes. 87Support for 802.11 n/ac is to come. 88.Sh BUGS 89Certainly. 90.Sh SEE ALSO 91.Xr wlan 4 , 92.Xr ifconfig 8 , 93.Xr wpa_supplicant 8 94.Sh HISTORY 95The 96.Nm 97driver first appeared in 98.Fx 14.0 . 99