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pcimodules(8)                          Linux PCI Utilities                          pcimodules(8)

NAME
       pcimodules - List kernel driver modules available for all currently plugged in PCI devices

SYNOPSIS
       pcimodules [--classclass_id] [--classmaskmask] [--help]

DESCRIPTION
       pcimodules  lists all driver modules for all currently plugged in PCI devices.  pcimodules
       should be run at boot time, and whenever a PCI device is "hot plugged"  into  the  system.
       This can be done by the following Bourne shell syntax:

                   for module in $(pcimodules) ; do

                        modprobe -s "$module"

                   done

       When  a  PCI  device  is  removed from the system, the Linux kernel will decrement a usage
       count on PCI driver module.  If this count drops to zero (i.e., there are no PCI drivers),
       then  the  modprobe -r process that is normally configured to run from cron every few min‐
       utes will eventually remove the unneeded module.

       The --class and --classmask arguments can be used to limit the search to  certain  classes
       of  PCI devices.  This is useful, for example, to generate a list of ethernet card drivers
       to be loaded when the kernel has indicated that it is trying to resolve an unknown network
       interface.

       Modules  are  listed in the order in which the PCI devices are physically arranged so that
       the computer owner can arrange things like having scsi device 0 be on a controller that is
       not alphabetically the first scsi controller.

OPTIONS
       --class class --classmask mask

       --class  and --classmask limit the search to PCI cards in particular classes.  These argu‐
       ments are always used together.  The arguments to --class and --classmask can be given  as
       hexadecimal numbers by prefixing a leading "0x".  Note that the classes used by pcimodules
       are in "Linux" format, meaning the class value that you see with lspci  would  be  shifted
       left eight bits, with the new low eight bits programming interface ID.  An examples of how
       to use class and classmask is provided below.  --help, -h Print a help message and exit.

EXAMPLES
       pcimodules
              lists all modules corresponding to currently plugged in PCI devices.

       pcimodules --class 0x20000 --classmask 0xffff00
              lists all modules corresponding to currently plugged in ethernet PCI devices.

FILES
       /lib/modules//modules.pcimap
              This file is automatically generated by depmod, and used by pcimodules to determine
              which modules correspond to which PCI ID's.

       /proc/bus/pci
              An  interface to PCI bus configuration space provided by the post-2.1.82 Linux ker‐
              nels. Contains per-bus subdirectories  with  per-card  config  space  files  and  a
              devices file containing a list of all PCI devices.

SEE ALSO
       lspci(8)

MAINTAINER
       The Linux PCI Utilities are maintained by Martin Mares .

AUTHOR
       pcimodules  was  written  by  Adam J. Richter , based on public domain
       example code by Martin Mares .

COPYRIGHT
       pcimodules is copyright 2000, Yggdrasil Computing, Incorporated, and may be  copied  under
       the  terms  and  conditions of version 2 of the GNU General Public License as published by
       the Free Software Foundation (Cambridge, Massachusetts, United States of America).

pciutils-3.3.1                            09 April 2015                             pcimodules(8)

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