mirror of
https://github.com/Zeckmathederg/glfs.git
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54 lines
2.3 KiB
XML
54 lines
2.3 KiB
XML
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<?xml version="1.0" encoding="ISO-8859-1"?>
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<!DOCTYPE sect1 PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
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"http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
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<!ENTITY % general-entities SYSTEM "../../general.ent">
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%general-entities;
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]>
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<sect1 id="wireless-kernel" xreflabel="Configure the Linux Kernel for Wireless">
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<?dbhtml filename="wireless-kernel.html"?>
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<title>Configure the Linux Kernel for Wireless</title>
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<para>
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Before using any userspace tool for connecting with a wireless AP,
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the Linux kernel must be configured to drive the wireless NIC properly.
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Enable the following options in the kernel configuration as well as
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specific device drivers for your hardware and recompile the kernel if
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necessary:
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</para>
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<screen><literal>[*] Networking support ---> [CONFIG_NET]
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[*] Wireless ---> [CONFIG_WIRELESS]
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<*/M> cfg80211 - wireless configuration API [CONFIG_CFG80211]
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< /*/M> Generic IEEE 802.11 Networking Stack (mac80211) [CONFIG_MAC80211]
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Device Drivers --->
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[*] Network device support ---> [CONFIG_NETDEVICES]
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[*] Wireless LAN ---> [CONFIG_WLAN]</literal></screen>
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<para>
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Open the <quote>Wireless LAN</quote> submenu and select the options that
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support your hardware. <command>lspci</command> from
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<xref linkend="pciutils"/> or <command>lsusb</command> from
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<xref linkend="usbutils"/> can be used to
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view your hardware configuration. Note that many (though not all)
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options for the wireless NICs depend on
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<parameter>CONFIG_MAC80211</parameter>. After the correct drivers are
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loaded, the interface will appear in
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<filename>/sys/class/net</filename>, or the output of the
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<command>ip link</command> command.
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</para>
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<para>
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Many wireless NIC drivers require a firmware. If you've enabled the
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correct driver in the kernel configuration but it fails to load (with
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the messages like <quote><computeroutput>Direct firmware load for
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<replaceable><filename</replaceable>> failed with error
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-2</computeroutput></quote>, it means you need to install the firmware
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or the wireless NIC won't work. Read <xref linkend='postlfs-firmware'/>
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for details.
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</para>
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</sect1>
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