Get-NetAdapterPowerManagement

Question

Hi,

I need to return a list of only supported properties for each nic from a predefined list of properties. That is, any property from the predefined list that does not have a value of 'Unsupported'. I haven't yet found a way to filter on the Disabled|Enabled|Unsupported value. 

The 2nd command shows the output I want to achieve, without only selecting that property.

Adding ? { $_ -ne "Unsupported" } does not work. What is the 'column' name of the actual values Disabled|Enabled|Unsupported?

Thanks

PS: This cmdlet is possibly the most frustrating one I've ever used.

Answer 1

You can try something like this:

$props = 
"AllowComputerToTurnOffDevice",
"D0PacketCoalescing",
"DeviceSleepOnDisconnect",
"ArpOffload",
"NSOffload",
"RsnRekeyOffload",
"SelectiveSuspend",
"WakeOnMagicPacket",
"WakeOnPattern"

Get-NetAdapter | 
    ForEach-Object {
        $desc = $_.InterfaceDescription
        $name = $_.Name
        Get-NetAdapterPowerManagement -Name $name |
            ForEach-Object{
                $h =    [ordered]@{ InterfaceDescription = $desc
                                    Name = $name
                                  }
                ForEach ($prop in $props){
                    $h[$prop] = ""                      # you need ALL properties in order to produce output that makes sense
                                                        # This has to do with the way objects are displayed (or exported)
                                                        # => the first objects properties will determine the properties
                                                        #    displayed for all subsequent objects!
                    if ($_.$prop -ne "Unsupported"){
                        $h.$prop = $_.$prop
                    }
                }
                [PSCustomObject]$h
            }
        }

OR, if you want only a simple tabulation:

$props = 
"AllowComputerToTurnOffDevice",
"D0PacketCoalescing",
"DeviceSleepOnDisconnect",
"ArpOffload",
"NSOffload",
"RsnRekeyOffload",
"SelectiveSuspend",
"WakeOnMagicPacket",
"WakeOnPattern"

Get-NetAdapter | 
    ForEach-Object {
        $desc = $_.InterfaceDescription
        $name = $_.Name
        Get-NetAdapterPowerManagement -Name $name | #-InterfaceDescription $_.InterfaceDescription |
            ForEach-Object{
                $name
                $desc
                ForEach ($prop in $props){
                    if ($_.$prop -ne "Unsupported"){
                        "`t$prop"
                    }
                }
                "==============================================="
            }
        }