Bug 214586 - Handbook: discovery of wireless devices for 11.0-RELEASE
Summary: Handbook: discovery of wireless devices for 11.0-RELEASE
Status: Closed FIXED
Alias: None
Product: Documentation
Classification: Unclassified
Component: Documentation (show other bugs)
Version: Latest
Hardware: Any Any
: --- Affects Only Me
Assignee: freebsd-doc (Nobody)
URL: https://www.freebsd.org/doc/handbook/...
Keywords: needs-patch
Depends on:
Reported: 2016-11-16 22:43 UTC by Ben Woods
Modified: 2017-03-10 12:34 UTC (History)
1 user (show)

See Also:


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Description Ben Woods freebsd_committer 2016-11-16 22:43:19 UTC
The FreeBSD Handbook chapter for wireless devices needs to be updated for changes in the behaviour of wireless interfaces on 11.0-RELEASE, which no longer shows the parent wireless device as an interface in the output of ifconfig

This makes the following statement in the 30.3.2. Quick Start sub-section outdated (incorrect):
"2. Identify the wireless adapter. The FreeBSD GENERIC kernel includes drivers for many common wireless adapters. If the wireless adapter is one of those models, it will be shown in the output from ifconfig(8):

% ifconfig | grep -B3 -i wireless
If a wireless adapter is not listed, an additional kernel module might be required, or it might be a model not supported by FreeBSD.

This example shows the Atheros ath0 wireless adapter."

The new method to identify available wireless adapters is to use the command:
$ sysctl net.wlan.devices
Comment 1 Ben Woods freebsd_committer 2016-11-16 22:54:29 UTC
Similarly, the 30.3.8. Troubleshooting sub-section may also need updating.

In the example given to utilise the wlandebug(8) tool, the command is given an argument of the parent ath0 interface, which no longer exists. The "ath0" should be replaced with "wlan0" in this example:

# wlandebug -i ath0 +scan+auth+debug+assoc
  net.wlan.0.debug: 0 => 0xc80000<assoc,auth,scan>
Comment 2 commit-hook freebsd_committer 2017-03-10 12:33:12 UTC
A commit references this bug:

Author: bcr
Date: Fri Mar 10 12:32:33 UTC 2017
New revision: 50044
URL: https://svnweb.freebsd.org/changeset/doc/50044

  Add a section for FreeBSD 11 and higher as this one
  uses a different method of detecting the wireless
  devices in the system (using sysctl).

  Additionally, change the wlandebug example to wlan0.

  PR:		214586
  Submitted by:	woodsb02@freebsd.org

Comment 3 Benedict Reuschling freebsd_committer 2017-03-10 12:34:00 UTC
I committed a patch based on your suggested changes. Thanks for filing the PR!