Here I am with a new series of videos. This time about GNU/Linux and PCI (Express). I want to show you, how to access PCI (Express) devices from User- and Kernelspace. Enjoy! We will talk about the two different address spaces of a PCI device and focus on the configuration space. Then we will write a small program to print out the first 64 Bytes of the configuration space, which are the standardized PCI Header! Here is a link to my fork of the pciutils: https://github.com/Johannes4Linux/pciutils My sources & useful links to PCI/PCI Express: https://tldp.org/LDP/tlk/dd/pci.html https://en.wikipedia.org/wiki/PCI_configuration_space https://pcisig.com/sites/default/files/files/PCI_Code-ID_r_1_11__v24_Jan_2019.pdf https://www.programmersought.com/article/6973544207/