Cheat Sheet #day31 - lspci

lspci Cheatsheet

Basic Usage

• Display all PCI devices:

    lspci
  

Display Options

• Verbose output (more detailed information):

    lspci -v
  

• Very verbose output (even more details):

    lspci -vv
  

• Maximum verbosity (most detailed output):

    lspci -vvv
  

• Show detailed output for a specific device (replace <device> with the specific device ID):

    lspci -v -s <device>
  

• Show only the specified device:

    lspci -s <device>
  

Information Types

• Show numerical IDs (useful for scripting):

    lspci -n
  

• Show both textual and numerical IDs:

    lspci -nn
  

• Display information in a tree-like format:

    lspci -t
  

• Show kernel drivers handling each device:

    lspci -k
  

• Show hexadecimal dump of the standard config space:

    lspci -x
  

• Show detailed hexadecimal dump of the config space:

    lspci -xxx
  

• Show capabilities (if available):

    lspci -vv -s <device>
  

Filtering and Sorting

• Filter output by vendor or device name (case insensitive):

    lspci | grep -i <vendor_or_device_name>
  

• Filter and show detailed output for specific devices:

    lspci -v | grep -i -A 20 <vendor_or_device_name>
  

PCI Resources

• Show the resource configuration:

    lspci -v -m
  

• Show only resource information:

    lspci -vvv | grep -E '^[0-9a-f]+:|Region|Memory'
  

Example Commands

• List all NVIDIA devices:

    lspci | grep -i nvidia
  

• Show detailed information for a specific device (e.g., the first Ethernet controller):

    lspci -v | grep -i ethernet -A 10
  

• List devices along with their kernel drivers:

    lspci -k
  

Saving and Parsing Output

• Save the output to a file:

    lspci -v > lspci_output.txt
  

• Read and parse saved output:

    cat lspci_output.txt
  

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This cheatsheet provides a quick reference to the most commonly used lspci commands and options, helping you to efficiently manage and troubleshoot PCI devices on your system.