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

pcidump
show 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:
 
 
pcidev
Specify a file to use for PCI lookups. If specified without bus:dev:func, all PCI devices in the domain will be shown.
 
 
file
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.
 
 
bus:dev:func
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.

/dev/pci*
Device files for accessing PCI domains.

pci(4)

The pcidump utility first appeared in OpenBSD 4.3.

The pcidump utility was written by David Gwynne <dlg@openbsd.org>.

The default behaviour of scanning all PCI domains is limited to those domains that have an entry in /dev.
July 16, 2013 OpenBSD-5.7