Paul Davis
45d3ec1437
git-svn-id: svn://localhost/ardour2/branches/2.1-staging@1698 d708f5d6-7413-0410-9779-e7cbd77b26cf
70 lines
2.4 KiB
XML
70 lines
2.4 KiB
XML
<?xml version="1.0" standalone="no"?>
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<!DOCTYPE section PUBLIC "-//OASIS//DTD DocBook XML V4.4//EN" "http://www.oasis-open.org/docbook/xml/4.4/docbookx.dtd" [
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]>
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<section id="sn-configuring-usb-device-access">
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<title>Configuring USB device access (Linux only)</title>
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<para>
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Linux is by default a multi-user system, so it has to have a policy to
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determine who can access various devices. This includes those that can
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be plugged into to a USB port.
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</para>
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<para>
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For devices known to the operating system (which these days includes
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most digital cameras, scanners, MIDI interfaces etc.), a logged-in user
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will be granted access automatically. However, for devices that the OS
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doesn't recognize (even if there is software on it that can use it),
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this is not the case. It is possible to configure Linux to reverse this
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policy and grant all users access to all devices, but this is not
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recommended for security reasons.
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</para>
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<section id="usb-access-tranzport">
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<title>Configuring Access to a Frontier Design Tranzport</title>
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<para>
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Using the Tranzport on Linux requires a couple of extra steps to
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enable non-administrative users to access the device.
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</para>
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<para>
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First, you need to login as the administrative user ("root"). Then put
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the following into a new file called
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<filename>/etc/hotplug/usb/tranzport</filename>
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</para>
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<screen>
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#!/bin/sh
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if [ $ACTION = "add" ] && [ -f $DEVICE ] ; then
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chmod 0666 $DEVICE
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fi
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exit 0
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</screen>
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<para>
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Then make sure that the file is executable by running
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</para>
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<screen>
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chmod +x /etc/hotplug/usb/tranzport
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</screen>
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<para>
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Second, edit the file <filename>/etc/hotplug/usb.usermap</filename> by
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adding the following 2 lines to the end of it (make sure that the 2nd
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line is not split across multiple lines, even though it is very long):
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</para>
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<screen>
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# Frontier Design Tranzport
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tranzport 0x0000 0x165b 0x8101 0x0000 0x0000 0x00 0x00 0x00 0x00 0x00 0x00 0x00000000
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</screen>
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<para>
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After doing these steps, the next time you plugin your Tranzport it
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will be accessible to you as a regular user.
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</para>
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</section>
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<!--
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<xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
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href="Some_Subsection.xml" />
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-->
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</section>
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