1.\" Copyright (c) 2004-2006 2.\" Damien Bergamini <damien.bergamini@free.fr>. All rights reserved. 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 unmodified, this list of conditions, and the following 9.\" disclaimer. 10.\" 2. Redistributions in binary form must reproduce the above copyright 11.\" notice, this list of conditions and the following disclaimer in the 12.\" documentation and/or other materials provided with the distribution. 13.\" 14.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24.\" SUCH DAMAGE. 25.\" 26.\" $FreeBSD: head/share/man/man4/iwm.4 354517 2019-11-07 23:39:33Z markj $ 27.\" 28.Dd March 20, 2020 29.Dt IWM 4 30.Os 31.Sh NAME 32.Nm iwm 33.Nd Intel IEEE 802.11ac wireless network driver 34.Sh SYNOPSIS 35To compile this driver into the kernel, 36include the following lines in your 37kernel configuration file: 38.Bd -ragged -offset indent 39.Cd "device iwm" 40.Cd "device pci" 41.Cd "device wlan" 42.\".Cd "device firmware" 43.Ed 44.Pp 45You also need to select a firmware for your device. 46.\"Choose one from: 47.\".Bd -ragged -offset indent 48.\".Cd "device iwm3160fw" 49.\".Cd "device iwm3168fw" 50.\".Cd "device iwm7260fw" 51.\".Cd "device iwm7265fw" 52.\".Cd "device iwm7265Dfw" 53.\".Cd "device iwm8000Cfw" 54.\".Cd "device iwm8265fw" 55.\".Cd "device iwm9000fw" 56.\".Cd "device iwm9260fw" 57.\".Ed 58.\".Pp 59.\"Or you can use 60Use 61.Bd -ragged -offset indent 62.Cd "device iwmfw" 63.Ed 64.Pp 65to include them all. 66.Pp 67Alternatively, to load the driver as a 68module at boot time, place the following lines in 69.Xr loader.conf 5 : 70.Bd -literal -offset indent 71if_iwm_load="YES" 72iwm3160fw_load="YES" 73iwm3168fw_load="YES" 74iwm7260fw_load="YES" 75iwm7265fw_load="YES" 76iwm7265Dfw_load="YES" 77iwm8000Cfw_load="YES" 78iwm8265fw_load="YES" 79iwm9000fw_load="YES" 80iwm9260fw_load="YES" 81.Ed 82.Sh DESCRIPTION 83The 84.Nm 85driver provides support for: 86.Pp 87.Bl -tag -width Ds -offset indent -compact 88.It Intel Dual Band Wireless AC 3160 89.It Intel Dual Band Wireless AC 3165 90.It Intel Dual Band Wireless AC 3168 91.It Intel Dual Band Wireless AC 7260 92.It Intel Dual Band Wireless AC 7265 93.It Intel Dual Band Wireless AC 8260 94.It Intel Dual Band Wireless AC 8265 95.It Intel Dual Band Wireless AC 9260 96.It Intel Dual Band Wireless AC 9270 97.It Intel Dual Band Wireless AC 946X 98.It Intel Dual Band Wireless AC 9560 99.El 100.Pp 101.Nm 102supports 103.Cm station 104mode operation. 105Only one virtual interface may be configured at any time. 106For more information on configuring this device, see 107.Xr ifconfig 8 . 108.Pp 109This driver requires the firmware built with the 110.Nm iwmfw 111module to work. 112.Sh LOADER TUNABLES 113.Bl -tag -width indent 114.It Va hw.iwm.msi.enable 115By default, the driver will use MSI if it is supported. 116This behavior can be turned off by setting this tunable to 0. 117.It Va hw.iwm.power_scheme 118Power management scheme: 1191 = active, 2 = balanced (default), 3 = low power 120.It Va hw.iwm.lar.disable 121Allows disabling LAR (Location Aware Regulatory) feature: 1220 = LAR enabled if available (default), 1 = LAR disabled 123.El 124.Sh EXAMPLES 125Join an existing BSS network (i.e., connect to an access point): 126.Bd -literal -offset indent 127ifconfig wlan create wlandev iwm0 inet 192.168.0.20 \e 128 netmask 0xffffff00 129.Ed 130.Pp 131Join a specific BSS network with network name 132.Dq Li my_net : 133.Pp 134.Dl "ifconfig wlan create wlandev iwm0 ssid my_net up" 135.Pp 136Join a specific BSS network with 64-bit WEP encryption: 137.Bd -literal -offset indent 138ifconfig wlan create wlandev iwm0 ssid my_net \e 139 wepmode on wepkey 0x1234567890 weptxkey 1 up 140.Ed 141.Pp 142Join a specific BSS network with 128-bit WEP encryption: 143.Bd -literal -offset indent 144ifconfig wlan create wlandev iwm0 wlanmode adhoc ssid my_net \e 145 wepmode on wepkey 0x01020304050607080910111213 weptxkey 1 146.Ed 147.Sh DIAGNOSTICS 148.Bl -diag 149.It "iwm%d: device timeout" 150The driver will reset the hardware. 151This should not happen. 152.It "iwm%d: firmware error" 153The onboard microcontroller crashed for some reason. 154The driver will reset the hardware. 155This should not happen. 156.It "iwm%d: fw chunk addr 0x%x len %d failed to load" 157Timed out waiting for a segment of the firmware to load. 158This should not happen. 159.It "iwm%d: could not read firmware %s (error %d)" 160The driver failed to load the firmware image using the 161.Xr firmware 9 162subsystem. 163Verify the 164.Xr iwmfw 4 165firmware module is present. 166.It "iwm%d: Failed to start INIT ucode: %d" 167An attempt to upload the INIT firmware image to the onboard microcontroller 168failed. 169This should not happen. 170.It "iwm%d: could not load firmware" 171An attempt to upload the REGULAR firmware image to the onboard microcontroller 172failed. 173This should not happen. 174.El 175.Sh SEE ALSO 176.Xr iwmfw 4 , 177.Xr pci 4 , 178.Xr wlan 4 , 179.Xr wlan_ccmp 4 , 180.Xr wlan_tkip 4 , 181.Xr wlan_wep 4 , 182.Xr ifconfig 8 , 183.Xr wpa_supplicant 8 184.Sh HISTORY 185The 186.Nm 187device driver first appeared in 188.Ox 5.7 . 189