lspci -v and lsmod

[ndaka123488]

What axactly does the information provided by the following commands (lspci -v and lsmod) tell you?
Does lspci verify that the listed device has drivers installed arleady?

[HROAdmin26]

Google: lspci

man lspci

.....
lspci is a utility for displaying information about PCI buses in the system and devices connected to them.

       By  default,  it  shows  a  brief list of devices. Use the options described below to request either a more verbose output or output intended for
       parsing by other programs.
.....
-k     Show kernel drivers handling each device and also kernel modules capable of handling it.  Turned on by default when -v  is  given  in  the
              normal mode of output.  (Currently works only on Linux with kernel 2.6 or newer.)

[ndaka123488]

One of the PCI devices listed on my systm does not show kernel drivers in use. Does this mean I am missing the drivers?

02:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8101E/RTL8102E PCI Express Fast Ethernet controller (rev 02)
Subsystem: Hewlett-Packard Company Device 2a8c
Kernel driver in use: r8169
Kernel modules: r8169
03:04.0 Multiport serial controller: SUNIX Co., Ltd. Device 1999
Subsystem: SUNIX Co., Ltd. Device 0002

[atreyu]

Probably. But your example (Realtek network adapter) does show a kernel driver (r8169). Can you post the output of lspci that shows the device with no driver/module?

The lsmod command just shows kernel modules that have been loaded, either automatically or manually. Modules/drivers being loaded does not necessarily mean that the hardware device for which they are intended (if any) are necessarily present/enabled. Behavior varies from module to module.