Monday, January 9, 2012

Finding More Driver Information using PowerShell


PowerTip of the Day, from


Finding More Driver Information

In a previous tip you learned how you can convert raw CSV data from a console application such as driverquery.exe into real PS objects. Let's play some more.

Since the CSV data only returns the complete path to a driver (which is too long to display without being truncated), let's add a "calculated property". That's a hash table with two keys: Name and Expression.

The script block in Expression takes the long path name and extracts just the file name. Now we get valuable driver information that - due to its object nature - can easily be sorted as well:

PS> $col1 = @{Name='File Name'; Expression={ Split-Path $_.Path -Leaf } }

PS> driverquery.exe /v /FO CSV | ConvertFrom-CSV | Select-Object 'Display Name',

 'Start Mode', 'Paged Pool(bytes)', $col1 | Sort-Object 'Display Name'


Display Name                   Start Mode                            Paged Pool(bytes   File Name

------------                   ----------                            -----------------        ---------

ACPI-Energieanze... Manual                                    4.096                                         acpipmi.sys

adp94xx                                   Manual                                    0                                                   adp94xx.sys

adpahci                                   Manual                                    0                                                   adpahci.sys

adpu320                                   Manual                                    0                                                   adpu320.sys

Agere Systems So... Manual                                    20.480                                    agrsm64.sys

aliide                                     Manual                                    0                                                   aliide.sys

AMD K8 Processor... Manual                                    28.672                                     amdk8.sys

AMD Processor Dr... Manual                                    28.672                                     amdppm.sys

amdide                                     Manual                                    0                                                   amdide.sys

amdsata                                  Manual                                    0                                                   amdsata.sys




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