Changeset c18f6acb


Ignore:
Timestamp:
08/13/2020 08:11:16 PM (14 months ago)
Author:
Xi Ruoyao <xry111@…>
Branches:
10.0, 10.1, 11.0, lazarus, qt5new, trunk, xry111/git-date, xry111/git-date-for-trunk, xry111/git-date-test
Children:
39e9093d
Parents:
0335997
Message:

firmware: add a paragraph about regulatory.db

git-svn-id: svn://svn.linuxfromscratch.org/BLFS/trunk/BOOK@23512 af4574ff-66df-0310-9fd7-8a98e5e911e0

File:
1 edited

Legend:

Unmodified
Added
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  • postlfs/config/firmware.xml

    r0335997 rc18f6acb  
    660660
    661661    <para>
     662      Different countries have different regulations on the radio spectrum
     663      usage of wireless devices.  You can install a firmware to make the
     664      wireless devices obey local spectrum regulations, so you won't be
     665      inquired by local authority or find your wireless NIC jamming the
     666      frequencies of other devices (for example, remote controllers).
     667      The regulatory database firmware can be downloaded from
     668      <ulink url = 'https://kernel.org/pub/software/network/wireless-regdb/'/>.
     669      To install it, simply extract <filename>regulatory.db</filename> and
     670      <filename>regulatory.db.p7s</filename> from the tarball into
     671      <filename class="directory">/lib/firmware</filename>.
     672      The access point would send a country code to your wireless NIC,
     673      and <xref linkend='wpa_supplicant'/> would tell the kernel to load
     674      the regulation of this country from
     675      <filename>regulatory.db</filename>, and enforce it.
     676    </para>
     677
     678    <para>
    662679      Firmware may also be needed for other devices such as some SCSI
    663680      controllers, bluetooth adaptors, or TV recorders. The same principles
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