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123 lines
7.8 KiB
123 lines
7.8 KiB
<HTML>
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<HEAD>
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<TITLE>Text-mode Device Console</TITLE>
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<META content="text/html; charset=windows-1252" http-equiv=Content-Type>
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<META content="Microsoft FrontPage 5.0" name=GENERATOR>
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</HEAD>
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<BODY link=#0000ff><FONT face=Verdana size=5>
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<H2>DevCon Tool</H2></FONT><FONT face=Verdana size=2>
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<P><SPAN style="COLOR: #ff0000; FONT-FAMILY: Arial; FONT-SIZE: 10pt">[This is
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preliminary documentation and subject to change.]</SPAN></P>
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<H3>SUMMARY</H3>
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This document accompanies the "DevCon" tool which is a text-mode device
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console. The instructions herein apply to the Windows XP operating
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system. DevCon has been designed for use on Windows 2000 and Windows XP. It will
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not work on Windows 95, Windows 98 or Windows ME.<p>The "DevCon" tool described in this article is a command line
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utility that acts as an alternative to Device Manager. It allows individual
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devices or groups of devices to be enabled, disabled, restarted, updated, removed and queried. Devcon provides information that is relevant to the developer and thus not
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available in Device Manager.<p>DevCon may not be redistributed, but
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is available as a debugging and development tool.</FONT> <font face="Verdana" size="2">The
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source code for Devcon can be found at src\setup\devcon along with
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documentation and may be freely modified for private use.
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<H3>USING DEVCON</H3>
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<p>Devcon can be found along with this documentation at tools\devcon. Devcon has
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built in help that is displayed by typing "devcon help". Examples on
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how to use devcon are described here.<p>Devcon accepts optional switches (-r for
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reboot, -m to specify remote machine), a command and arguments related to that
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command. Example DevCon commands are:<p><b>devcon find pci\*</b><p>Find and list
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all known PCI devices on the local machine (assuming that a device is PCI if it has
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a hardware ID that is prefixed by "PCI\").<p><b>devcon -m:\\foobar
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find pci\*</b><p>Find and list all known PCI devices on the machine "foobar" (-m
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allows target machine to be specified. IPC access to machine is required).<p><b>devcon
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classes</b><p>List all known setup classes. The output contains the short
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non-localized name (e.g. "USB") and the descriptive name (e.g.
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"Universal Serial Bus controllers").<p><b>devcon listclass usb 1394</b><p>List
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all present devices for each class named (in this case USB and 1394).<p><b>devcon find =ports *pnp*</b><p>List
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present devices that are a member of the "ports" setup class and
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contain "PNP" in their hardware ID.<p><b>devcon find =ports @root\*</b><p>List
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present devices that are a member of the "ports" setup class and live
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in the "root" branch of the enum tree (i.e., the instance ID is
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prefixed by "root\"). Note that programmatically, no assumption should
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be made about how an instance ID is formatted, and root devices can be
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determined by checking device status bits. However this feature has been
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provided in devcon to aid in debugging.<p><b>devcon findall =ports</b><p>Lists
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non-present devices along with present devices for the ports class. This will
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include devices that have been removed, devices that have been moved from one
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slot to another, or, in some cases, devices that have been enumerated
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differently due to a BIOS change.<p><b>devcon status @pci\*</b><p>Lists the
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status of each present device who's instance ID begins with "pci\".<p><b>devcon status @ACPI\PNP0501\1</b><p>Lists the status of
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a specific device instance, in this case an ACPI enumerated serial port.<p><b>devcon resources =ports</b><p>Lists the resources used by
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all devices in the ports setup class.<p><b>devcon driverfiles =ports</b><p>Lists
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files that are associated with each device in the ports setup class.<p><b>devcon
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stack =ports</b><p>Lists the expected driver stack for the device, including
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device and class upper/lower filters as well as the controlling service.<p><b>devcon drivernodes
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@ROOT\PCI_HAL\PNP0A03</b><p>Lists all compatible drivers for the device
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"ROOT\PCI_HAL\PNP0A03". This can be used to determine why an in-box INF was
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chosen in preference to a third party INF.<p><b>devcon remove @usb\*</b><p>Remove all USB
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devices. Devices removed will be listed along with removal status.<p><b>devcon
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rescan</b><p>Rescan for new Plug&Play devices.<p><b>devcon update mydev.inf
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*pnp0501</b><p>Update all devices that match (exactly) the hardware ID *pnp0501
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to use the best driver in mydev.inf associated with the hardware ID *pnp0501.
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Note that this will force all devices to use the driver in mydev.inf even if
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there is a better match already on the system. This is useful for installing
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new versions of drivers during development prior to obtaining a signature. It only
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affects
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the devices that match the specified hardware ID and not child devices. If the
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specified INF is unsigned, Windows may display UI appear confirming that the driver should be
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installed. If a reboot is required, it will be reported and devcon will return
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with errorlevel of 1. Specifying "-r" will cause a reboot to occur
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automatically if one is required.<p><b>devcon -r install %windir%\inf\netloop.inf
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*MSLOOP</b><p>Install a new instance of the Microsoft loopback adaptor. Install
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will allow a "virtual device" such as the loopback adaptor to be
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installed by creating a new root-enumerated device node. Reboot the machine
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silently if a reboot is required.<p><b>devcon disable *MSLOOP</b><p>Disable all
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devices who's hardware ID ends with "MSLOOP" (including *MSLOOP).<p><b>devcon
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enable '*MSLOOP</b><p>Enable all devices who's hardware ID <i>is</i> "*MSLOOP".
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The single quote indicates that the hardware ID must be taken literally.<p><b>devcon
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restart =net @'ROOT\*MSLOOP\0000</b><p>Restart the loopback adaptor "ROOT\*MSLOOP\0000".
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The single quote indicates that the instance ID must be taken literally.<h4>Notes</h4>
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<ul>
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<li>Devcon will return an errorlevel for use in scripts. 0 indicates success.
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1 indicates that a reboot is required. 2 indicates a failure. 3 indicates a
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syntax error.</li>
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<li>If "-r" is specified and a reboot is required, the reboot will
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occur without warning once all devices have been processed.</li>
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<li>If "-m:\\machine" is specified and the command will not work for
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a remote machine, an error will be reported.</li>
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<li>Devcon allows wildcards in instance ID's for interactive convenience. No
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assumption should be made about the format of an instance ID from machine to
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machine and from OS version to OS version.</li>
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</ul>
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<H3>CODE TOUR</H3>
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<H4>File Manifest</H4>
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</font><FONT face="Courier" size="3">
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<TABLE BORDER=0 CELLSPACING=1 CELLPADDING=0 width="916">
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<TR><TD width="151" valign="top"><U>File</u></TD><TD width="755"><u>Description<u></TD></TR>
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<TR><TD width="151" valign="top"><i>DevCon.htm</i></TD><TD width="755">Sample tour documentation for this binary (this file).</TD></TR>
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<tr>
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<TD width="151" valign="top"><i>ia64\DevCon.exe</i></TD><TD width="755">64-bit DevCon tool
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binary.</TD>
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</tr>
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<tr>
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<TD width="151" valign="top"><i>i386\DevCon.exe</i></TD><TD width="755">32-bit
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DevCon tool binary. This will not function completely on 64-bit Windows.</TD>
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</tr>
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</TABLE>
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<H3>FEEDBACK</H3>
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<P>We welcome your comments, problem reports and wish-list requests. Please
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submit them by pointing your Internet browser to <A href="http://www.microsoft.com/ddk">http://www.microsoft.com/ddk</A>.
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</FONT></P>
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<P align=center><FONT face=Verdana size=2><A href="#top">Top of page</A></P></FONT>
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<TABLE border=0" cellSpacing="0" width="624">
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<TR>
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<TD bgColor="#00ffff" height="2" vAlign="middle"></TD></TR></TABLE>
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<FONT face="MS Sans Serif" size=1>
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<P>© Microsoft Corporation 2001</FONT><FONT face=Verdana size=2>
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</P></FONT>
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</BODY>
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