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scanpci - scan/probe PCI buses
scanpci [-v12OfV]
Scanpci
is a utility that can be used to scan PCI buses and report information
about the configuration space settings for each PCI device. On most platforms,
scanpci can only be run by the root user.
- -v
- Print the configuration
space information for each device in a verbose format. Without this option,
only a brief description is printed for each device.
- -x
- Show hexadecimal
dump of the first 64 bytes of each PCI device's configuration space. For
CardBus bridges, the first 128 bytes are dumped instead. This option can
be repeated to dump all 256 or 4096 bytes, but doing so might cause scanpci
(or the system) to crash because some devices cannot tolerate reads of
undefined portions of their configuration space.
- -1
- Use PCI config type 1.
- -2
- Use PCI config type 2.
- -f
- Used in conjunction with the above two options,
this forces the specified configuration type to be used for config space
access.
- -O
- Use the OS's PCI config space access mechanism to access the PCI
config space (when available).
- -V n
- Set the verbosity level to n for the
internal PCI scanner. This is primarily for debugging use.
pcitweak(1)
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