FreeBSD manual
download PDF document: if_iwm.4.pdf
IWM(4) FreeBSD Kernel Interfaces Manual IWM(4)
NAME
iwm - Intel IEEE 802.11ac wireless network driver
SYNOPSIS
To compile this driver into the kernel, include the following lines in
your kernel configuration file:
device iwm
device pci
device wlan
device firmware
You also need to select a firmware for your device. Choose one from:
device iwm3160fw
device iwm3168fw
device iwm7260fw
device iwm7265fw
device iwm7265Dfw
device iwm8000Cfw
device iwm8265fw
device iwm9000fw
device iwm9260fw
Or you can use
device iwmfw
to include them all.
Alternatively, to load the driver as a module at boot time, place the
following lines in loader.conf(5):
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"
DESCRIPTION
The iwm driver supports running most Intel Wireless AC series network
devices in station mode operation. Only one virtual interface may be
configured at any time. This driver requires the firmware built with the
iwmfw(4) module to work.
For more information on configuring this device, see ifconfig(8).
HARDWARE
The iwm driver supports the following PCIe Wi-Fi devices:
o Intel Dual Band Wireless AC 3160
o Intel Dual Band Wireless AC 3165
o Intel Dual Band Wireless AC 946X
o Intel Dual Band Wireless AC 9560
EXAMPLES
Join an existing BSS network (i.e., connect to an access point):
ifconfig wlan create wlandev iwm0 inet 192.0.2.20/24
Join a specific BSS network with network name my_net:
ifconfig wlan create wlandev iwm0 ssid my_net up
Join a specific BSS network with 64-bit WEP encryption:
ifconfig wlan create wlandev iwm0 ssid my_net \
wepmode on wepkey 0x1234567890 weptxkey 1 up
Join a specific BSS network with 128-bit WEP encryption:
ifconfig wlan create wlandev iwm0 wlanmode adhoc ssid my_net \
wepmode on wepkey 0x01020304050607080910111213 weptxkey 1
DIAGNOSTICS
iwm%d: device timeout The driver will reset the hardware. This should
not happen.
iwm%d: firmware error The onboard microcontroller crashed for some
reason. The driver will reset the hardware. This should not happen.
iwm%d: timeout waiting for firmware initialization to complete The
onboard microcontroller failed to initialize in time. This should not
happen.
iwm%d: could not load firmware image '%s' The driver failed to load the
firmware image using the firmware(9) subsystem. Verify the iwmfw(4)
firmware module is present.
iwm%d: could not load boot firmware An attempt to upload the boot
firmware image to the onboard microcontroller failed. This should not
happen.
iwm%d: could not load microcode An attempt to upload the microcode image
to the onboard microcontroller failed. This should not happen.
iwm%d: could not load main firmware An attempt to upload the main
firmware image to the onboard microcontroller failed. This should not
happen.
SEE ALSO
iwlwifi(4), iwmfw(4), pci(4), wlan(4), wlan_ccmp(4), wlan_tkip(4),
wlan_wep(4), networking(7), ifconfig(8), wpa_supplicant(8)
BUGS
Currently, iwm only supports 802.11a/b/g modes. It will not associate to
access points that are configured to operate only in 802.11n/ac modes.
FreeBSD 14.2-RELEASE November 10, 2024 FreeBSD 14.2-RELEASE