NAME
devmatch —
print information about unattached
devices
SYNOPSIS
devmatch |
[-adhpuv] [--all]
[--dump] [--hints
file] [--nomatch
event] [--unbound]
[--verbose] |
DESCRIPTION
Thedevmatch utility, without any arguments, prints all
the kernel modules it has found for all the unattached, enabled devices in the
system.
-a--all- Include all devices, not just the ones that are unattached.
-d--dump- Produce a human readable dump of the linker.hints file.
-h--hintsfile- Use the named file instead of linker.hints guessed from the current module load path.
-p--nomatchevent- Parse and use a standard NOMATCH event from devd(8) for matching instead of searching the device tree.
-u--unbound- Attempt to produce a list of those drivers with PNP info whose driver tables with that PNP info can't be found.
-v--verbose- Produce more verbose output.
SEE ALSO
BUGS
The kernel has hints in it, but we exclude it from the list of modules to suggest for unmatched devices. We exclude it when suggesting drivers, but include it when looking for unbound devices or producing a full dump of linker.hints. This can be confusing.
Some modules are hard links in /boot/kernel and will be reported twice.
The PNP string's attributes are evaluated once per PNP entry on that bus rather than once.
The term PNP is overloaded in FreeBSD. It means, generically, the identifying data the bus provides about a device. While this include old ISA PNP identifiers, it also includes the logical equivalent in USB, PCI, and others.
Many drivers currently lack proper PNP table decorations and need to be updated.
AUTHORS
Warner Losh <imp@FreeBSD.org>