lspci
Thelspci command is a standard utility on Linux and Other Unix like operating
systems. It is used to get and display information about PCI (Peripheral Component Interconnect)
buses and devices connected to a system. It is part of the pciutils
package.
Running lspci with no arguments prints a list of installed hardware. Things like your
graphics card, network adapters, and USB controllers/devices. Here are a few commonly useful variations:
Variations
-
Show Kernel drivers:
lspci -kDisplays the specific Linux Kernel driver handling each PCI device. -
Verbose Output:
sudo lspci -vorsudo lspci -vvvDisplays technical specs about device capabilities, memory addresses,and IRQs. -
Show bus tree:
lspci -tvOutputs a tree-like diagram showing the hierarchy of buses, bridges, and connected devices. -
Filter by device type:
lspci | grep -i [device]Narrows output to find specific parts (e.g.,lspci | grep -i vgafor graphics, orlspci | grep -i "ethernet"for network). -
PCIe link speed:
sudo lspci -s [bus:device.function] -vvvQueries a specific devices's configuration to verify supported and currently active link speed and lane widths.
01:00.0 VGA compatible controller: NVIDIA Corporation GA106 [GeForce RTX 3060] (rev a1)Output Structure
-
Slot/Address:
01:00.0(Bus:Device.function). -
Class:
VGA compatible controller. -
Vendor & Device name:
NVIDIA Corporation GA106 [GeForce RTX 3060]. -
Revision:
(rev a1).
lspci is part of the pciutils package.
You can use lsusb to get similar information on USB devices.