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PCIDUMP(8) System Manager's Manual PCIDUMP(8)

pcidumpshow PCI device data

pcidump [-v] [-x | -xx | -xxx] [-d pcidev] [bus:dev:func]

pcidump -r file [-d pcidev] bus:dev:func

The pcidump utility displays the device address, vendor, and product name of PCI devices. When no arguments are given, information on all PCI devices in the system is shown; otherwise a single PCI domain or device may be specified.

The options are as follows:

Specify a file to use for PCI lookups. If specified without bus:dev:func, all PCI devices in the domain will be shown.
Reads the PCI ROM from the device specified by bus:dev:func, and writes its contents to file.
Shows detailed information about PCI devices.
Shows a hexadecimal dump of the first 64 bytes of PCI config space.
Shows a hexadecimal dump of the full PCI config space.
Shows a hexadecimal dump of the PCIe extended config space.
Show information about the PCI device specified by the tuple given on the command line. If the -d option is not given, /dev/pci is used.

Device files for accessing PCI domains.


The pcidump utility first appeared in OpenBSD 4.3.

The pcidump utility was written by David Gwynne <>.

The default behaviour of scanning all PCI domains is limited to those domains that have an entry in /dev.

July 16, 2013 OpenBSD-7.3