.\" $OpenBSD: qwx.4,v 1.6 2024/06/03 14:59:22 jsg Exp $
.\"
.\" Copyright (c) 2022 Martin Pieuchot <mpi@openbsd.org>
.\" Copyright (c) 2024 Stefan Sperling <stsp@openbsd.org>
.\"
.\" Permission to use, copy, modify, and distribute this software for any
.\" purpose with or without fee is hereby granted, provided that the above
.\" copyright notice and this permission notice appear in all copies.
.\"
.\" THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
.\" WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
.\" MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
.\" ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
.\" WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
.\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
.\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
.\"
.Dd $Mdocdate: June 3 2024 $
.Dt QWX 4
.Os
.Sh NAME
.Nm qwx
.Nd Qualcomm IEEE 802.11a/ac/ax/b/g/n wireless network device
.Sh SYNOPSIS
.Cd "qwx* at pci?"
.Sh DESCRIPTION
The
.Nm
driver provides support for Qualcomm Technologies QCNFA765
802.11ax devices.
.Pp
The
.Nm
driver can be configured at runtime with
.Xr ifconfig 8
or on boot with
.Xr hostname.if 5 .
.Sh FILES
The driver needs the following firmware files,
which are loaded when an interface is brought up:
.Pp
.Bl -tag -width Ds -offset indent -compact
.It Pa /etc/firmware/qwx-wcn6855-hw2.0-amss
.It Pa /etc/firmware/qwx-wcn6855-hw2.0-board-2
.It Pa /etc/firmware/qwx-wcn6855-hw2.0-m3
.It Pa /etc/firmware/qwx-wcn6855-hw2.0-regdb
.It Pa /etc/firmware/qwx-wcn6855-hw2.1-amss
.It Pa /etc/firmware/qwx-wcn6855-hw2.1-board-2
.It Pa /etc/firmware/qwx-wcn6855-hw2.1-m3
.It Pa /etc/firmware/qwx-wcn6855-hw2.1-regdb
.El
.Pp
These firmware files are not free because Qualcomm refuses to grant
distribution rights without contractual obligations.
As a result, even though
.Ox
includes the driver, the firmware files cannot be included and
users have to download these files on their own.
.Pp
A prepackaged version of the firmware can be installed using
.Xr fw_update 8 .
.Sh EXAMPLES
The following example scans for available networks:
.Pp
.Dl # ifconfig qwx0 scan
.Pp
The following
.Xr hostname.if 5
example configures qwx0 to join network
.Dq mynwid ,
using WPA key
.Dq mywpakey ,
obtaining an IP address using DHCP:
.Bd -literal -offset indent
join mynwid wpakey mywpakey
inet autoconf
.Ed
.Sh SEE ALSO
.Xr arp 4 ,
.Xr ifmedia 4 ,
.Xr intro 4 ,
.Xr netintro 4 ,
.Xr pci 4 ,
.Xr hostname.if 5 ,
.Xr ifconfig 8
.Sh HISTORY
The
.Nm
driver first appeared in
.Ox 7.5 .
.Sh CAVEATS
The
.Nm
driver does not support any of the 802.11n, 802.11ac, and 802.11ax
capabilities offered by the hardware.
.Sh BUGS
Broadcast and Multicast frames are only received on networks which
do not use encryption or which use WPA2 with group cipher CCMP.
This prevents ARP and IPv6 from working correctly on other types of
networks.