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BoBo
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 Posted: Fri Dec 03, 2004 6:41 pm Post subject: Device Management |
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| Quote: | Device Management
Device management provides a way to uniformly notify all applications and system components of changes that may affect their operation or access to resources. Applications and the system use and process device events to take advantage of new resources when they become available and to prevent loss of data when existing resources become unavailable.
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Maybe interesting if someone tries to detect a non-/existing device e.g an USB stick.
Probably usefull if you wanna request a new AHK feature  |
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BoBo
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| Posted: Sat Dec 04, 2004 7:11 pm Post subject: |
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| Quote: | DevCon is a command line utility that acts as an alternative to Device Manager. Using DevCon, you can enable, disable, restart, update, remove, and query individual devices or groups of devices. DevCon provides information that is relevant to the developer and is not available in Device Manager.
You can use DevCon with Windows 2000 and Windows XP. You cannot use Devcon with Microsoft Windows 95, Windows 98, or Windows Millennium Edition.
Using DevCon
DevCon is a command-line utility with built-in documentation. If you run the devcon help command, the following list of commands and descriptions appears. The devcon help command will give more detailed help on any command. With some of these commands, you can specify a remote target computer. These commands work if you are using the 32-bit version of DevCon on WOW64. Device Console Help:
devcon.exe [-r] [-m:\\<machine>] <command> [<arg>...]
-r if specified will reboot machine after command is complete, if needed.
<machine> is name of target machine.
<command> is command to perform (see below).
<arg>... is one or more arguments if required by command.
For help on a specific command, type: devcon.exe help <command>
classfilter Allows modification of class filters.
classes List all device setup classes.
disable Disable devices that match the specific hardware or
instance ID.
driverfiles List driver files installed for devices.
drivernodes Lists all the driver nodes of devices.
enable Enable devices that match the specific hardware or
instance ID.
find Find devices that match the specific hardware or
instance ID.
findall Find devices including those that are not present.
help Display this information.
hwids Lists hardware ID's of devices.
install Manually install a device.
listclass List all devices for a setup class.
reboot Reboot local machine.
remove Remove devices that match the specific hardware or
instance ID.
rescan Scan for new hardware.
resources Lists hardware resources of devices.
restart Restart devices that match the specific hardware or
instance ID.
stack Lists expected driver stack of devices.
status List running status of devices.
update Manually update a device.
UpdateNI Manually update a device without user prompt
SetHwID Adds, deletes, and changes the order of hardware IDs of root-enumerated devices.
Example DevCon Commands
devcon -m:\\test find pci\*
Lists all known PCI devices on the computer test. (By using-m, you can specify a target computer. You must use Interprocess communication (IPC) to access the computer.)
devcon -r install Windows directory\Inf\Netloop.inf *MSLOOP
Installs a new instance of the Microsoft loopback adaptor. This creates a new root-enumerated device node with which you can install a "virtual device," such as the loopback adaptor. This command also restarts the computer silently if a restart is required.
devcon classes
Lists all known setup classes. The output contains the short nonlocalized name (for example, "USB") and the descriptive name (for example, "Universal Serial Bus controllers").
devcon classfilter upper !filter1 !filter2
Deletes the two specified filters.
devcon classfilter lower !badfilter +goodfilter
Replaces the "badfilter" with the "goodfilter".
devcon driverfiles =ports
Lists files that are associated with each device in the ports setup class.
devcon disable *MSLOOP
Disables all devices that have a hardware ID that ends in "MSLOOP" (including "*MSLOOP").
devcon drivernodes @ROOT\PCI_HAL\PNP0A03
Lists all compatible drivers for the device ROOT\PCI_HAL\PNP0A03. This can be used to determine why an integral device information (.inf) file was chosen, instead of a third-party .inf file.
devcon enable '*MSLOOP
Enables all devices that have a hardware ID of "*MSLOOP". The single quotation mark indicates that the hardware ID must be taken literally (in other words, the asterisk ["*"] actually is an asterisk; it is not a wildcard character).
devcon find *
Lists device instances of all devices that are present on the local computer.
devcon find pci\*
Lists all known peripheral component interconnect (PCI) devices that are on the local computer (this command assumes that a device is PCI if it has a hardware ID that is prefixed by "PCI\").
devcon find =ports *pnp*
Lists devices that are present that are a member of the ports setup class and that contain "PNP" in their hardware ID.
devcon find =ports @root\*
Lists devices that are present that are a member of the ports setup class and that are in the "root" branch of the enum tree (the instance ID is prefixed by "root\"). Note that you should not make any programmatic assumption about how an instance ID is formatted. To determine root devices, you can look at device status bits. This feature is included in DevCon to aid in debugging.
devcon findall =ports
Lists "nonpresent" devices and devices that are present for the ports class. This includes devices that have been removed, devices that have been moved from one slot to another, and, in some cases, devices that have been enumerated differently due to a BIOS change.
devcon listclass usb 1394
Lists all devices that are present for each class named (in this case, USB and 1394).
devcon remove @usb\*
Removes all USB devices. Devices that are removed are listed with their removal status.
devcon rescan
Rescans for new Plug and Play devices.
devcon resources =ports
Lists the resources that are used by all devices in the ports setup class.
devcon restart =net @'ROOT\*MSLOOP\0000
Restarts the loopback adaptor ROOT\*MSLOOP\0000. The single quotation mark in the command indicates that the instance ID must be taken literally.
devcon sethwid @ROOT\LEGACY_BEEP\0000 := beep
Assign the hardware ID, beep, to the legacy beep device.
devcon stack =ports
Lists the expected driver stack for the device. This includes device and class upper/lower filters, and the controlling service.
devcon status @pci\*
Lists the status of each device present that has an instance ID that begins with "pci\".
devcon status @ACPI\PNP0501\1
Lists the status of a specific device instance, in this case an Advanced Configuration and Power Interface (ACPI)-enumerated serial port.
devcon status @root\rdp_mou\0000
Lists the status of the Microsoft Terminal Server or Terminal Services mouse driver.
devcon status *PNP05*
Lists the status of all COM ports.
devcon update mydev.inf *pnp0501
Updates all devices that exactly match the hardware ID *pnp0501 to use the best driver in Mydev.inf that is associated with the hardware ID *pnp0501.
Note: This update forces all devices to use the driver in Mydev.inf, even if there is a better match already on the system. This is useful when you want to install new versions of drivers during development before you obtain a signature. The update affects only the devices that match the specified hardware ID, and does not affect the child devices. If the specified .inf file is unsigned, Windows may display a dialog box that prompts you to confirm whether the driver should be installed. If a restart is required, this is reported and DevCon returns a level 1 error. If you specify -r, this causes a restart to occur automatically if one is required.
NOTES
• Devcon will return an error level for use in scripts:
"0" indicates a success.
"1" indicates that a restart is required.
"2" indicates a failure.
"3" indicates a syntax error.
• If you specify -r and a restart is required, the restart occurs without warning after all devices have been processed.
• If you specify -m:\\computer and the command will not work for a remote computer, an error is reported.
• Devcon allows wildcards in instance IDs for interactive convenience. Do not assume anything about the format of an instance ID from computer to computer and from operating system version to operating system version.
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