Explanation
The lspci command can display information about the system hardware, such as:
* Device IRQ settings1: The lspci command can show the interrupt request (IRQ) number assigned to each device by using the -v option. The IRQ number indicates how the device communicates with the CPU.
* PCI bus speed2: The lspci command can show the speed of the PCI bus by using the -vv option. The speed is expressed in megahertz (MHz) or gigahertz (GHz) and indicates how fast the data can be transferred between the device and the bus.
* Device vendor identification3: The lspci command can show the name and identification number of the device vendor by using the -n or -nn option. The vendor identification helps to identify the manufacturer and model of the device.
References: 1: https://www.man7.org/linux/man-pages/man8/lspci.8.html 2:
https://phoenixnap.com/kb/lspci-command 3: https://en.wikipedia.org/wiki/Lspci