.\" Copyright (c) 2004-2006 .\" Damien Bergamini . All rights reserved. .\" .\" 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 unmodified, 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. .\" .\" $FreeBSD: head/share/man/man4/iwm.4 354517 2019-11-07 23:39:33Z markj $ .\" .Dd March 20, 2020 .Dt IWM 4 .Os .Sh NAME .Nm iwm .Nd Intel IEEE 802.11ac wireless network driver .Sh SYNOPSIS To compile this driver into the kernel, include the following lines in your kernel configuration file: .Bd -ragged -offset indent .Cd "device iwm" .Cd "device pci" .Cd "device wlan" .\".Cd "device firmware" .Ed .Pp You also need to select a firmware for your device. .\"Choose one from: .\".Bd -ragged -offset indent .\".Cd "device iwm3160fw" .\".Cd "device iwm3168fw" .\".Cd "device iwm7260fw" .\".Cd "device iwm7265fw" .\".Cd "device iwm7265Dfw" .\".Cd "device iwm8000Cfw" .\".Cd "device iwm8265fw" .\".Cd "device iwm9000fw" .\".Cd "device iwm9260fw" .\".Ed .\".Pp .\"Or you can use Use .Bd -ragged -offset indent .Cd "device iwmfw" .Ed .Pp to include them all. .Pp Alternatively, to load the driver as a module at boot time, place the following lines in .Xr loader.conf 5 : .Bd -literal -offset indent if_iwm_load="YES" iwm3160fw_load="YES" iwm3168fw_load="YES" iwm7260fw_load="YES" iwm7265fw_load="YES" iwm7265Dfw_load="YES" iwm8000Cfw_load="YES" iwm8265fw_load="YES" iwm9000fw_load="YES" iwm9260fw_load="YES" .Ed .Sh DESCRIPTION The .Nm driver provides support for: .Pp .Bl -tag -width Ds -offset indent -compact .It Intel Dual Band Wireless AC 3160 .It Intel Dual Band Wireless AC 3165 .It Intel Dual Band Wireless AC 3168 .It Intel Dual Band Wireless AC 7260 .It Intel Dual Band Wireless AC 7265 .It Intel Dual Band Wireless AC 8260 .It Intel Dual Band Wireless AC 8265 .It Intel Dual Band Wireless AC 9260 .It Intel Dual Band Wireless AC 9270 .It Intel Dual Band Wireless AC 946X .It Intel Dual Band Wireless AC 9560 .El .Pp .Nm supports .Cm station mode operation. Only one virtual interface may be configured at any time. For more information on configuring this device, see .Xr ifconfig 8 . .Pp This driver requires the firmware built with the .Nm iwmfw module to work. .Sh LOADER TUNABLES .Bl -tag -width indent .It Va hw.iwm.msi.enable By default, the driver will use MSI if it is supported. This behavior can be turned off by setting this tunable to 0. .It Va hw.iwm.power_scheme Power management scheme: 1 = active, 2 = balanced (default), 3 = low power .It Va hw.iwm.lar.disable Allows disabling LAR (Location Aware Regulatory) feature: 0 = LAR enabled if available (default), 1 = LAR disabled .El .Sh EXAMPLES Join an existing BSS network (i.e., connect to an access point): .Bd -literal -offset indent ifconfig wlan create wlandev iwm0 inet 192.168.0.20 \e netmask 0xffffff00 .Ed .Pp Join a specific BSS network with network name .Dq Li my_net : .Pp .Dl "ifconfig wlan create wlandev iwm0 ssid my_net up" .Pp Join a specific BSS network with 64-bit WEP encryption: .Bd -literal -offset indent ifconfig wlan create wlandev iwm0 ssid my_net \e wepmode on wepkey 0x1234567890 weptxkey 1 up .Ed .Pp Join a specific BSS network with 128-bit WEP encryption: .Bd -literal -offset indent ifconfig wlan create wlandev iwm0 wlanmode adhoc ssid my_net \e wepmode on wepkey 0x01020304050607080910111213 weptxkey 1 .Ed .Sh DIAGNOSTICS .Bl -diag .It "iwm%d: device timeout" The driver will reset the hardware. This should not happen. .It "iwm%d: firmware error" The onboard microcontroller crashed for some reason. The driver will reset the hardware. This should not happen. .It "iwm%d: fw chunk addr 0x%x len %d failed to load" Timed out waiting for a segment of the firmware to load. This should not happen. .It "iwm%d: could not read firmware %s (error %d)" The driver failed to load the firmware image using the .Xr firmware 9 subsystem. Verify the .Xr iwmfw 4 firmware module is present. .It "iwm%d: Failed to start INIT ucode: %d" An attempt to upload the INIT firmware image to the onboard microcontroller failed. This should not happen. .It "iwm%d: could not load firmware" An attempt to upload the REGULAR firmware image to the onboard microcontroller failed. This should not happen. .El .Sh SEE ALSO .Xr iwmfw 4 , .Xr pci 4 , .Xr wlan 4 , .Xr wlan_ccmp 4 , .Xr wlan_tkip 4 , .Xr wlan_wep 4 , .Xr ifconfig 8 , .Xr wpa_supplicant 8 .Sh HISTORY The .Nm device driver first appeared in .Ox 5.7 .