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.TH BIOSDEVNAME 1 "Nov 28, 2010"
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biosdevname \- give BIOS-given name of a device
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.RI [options]\ [args]...
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biosdevname takes a kernel device name as an
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argument, and returns the BIOS-given name it "should" be.
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Treat [args] as ethernet devs
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.B \-\-policy \fI[physical|all_ethN]
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.B \-\-prefix \fI[string]
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string use for embedded NICs in the physical policy (default=em)
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policy is the current default. However, when invoking biosdevname in
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udev rules, one should always specify the policy you want, as the
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default has changed over time.
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policy uses the following scheme:
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pci<slot>#<port>_<virtual instance>
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for cards in PCI slots
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policy makes a best guess at what the device order should be, with
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embedded devices first, PCI cards in ascending slot order, and ports
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in ascending PCI bus/device/function order breadth-first. However,
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if your PCI devices are hot-plugged or hot-pluggable, including the
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virtual functions on an SR-IOV device. In a hot-plug scenario, each separate
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udev instance will be invoked in parallel, while the device tree is
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still being populated with new devices. Each udev instance will see a
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different PCI tree, and thus cannot provide consistent enumeration.
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Use of this policy should be limited to only scenarios where all PCI
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devices are present at boot (cold-plug).
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Returns 0 on success, with BIOS-suggested name printed to stdout.
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Returns 1 on provided device name lookup failure.
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Returns 2 if system BIOS does not provide naming information.
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biosdevname requires system BIOS to provide naming information, either
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via SMBIOS or sysfs files.
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Returns 3 if not run as root but requires root privileges.
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Returns 4 if running in a virtual machine.
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http://linux.dell.com/wiki/index.php/Oss/libnetdevname
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http://linux.dell.com/files/biosdevname/
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git://linux.dell.com/biosdevname.git
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package contains two tools useful for debugging BIOS features that
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biosdevname uses, specifically
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to read the SMBIOS Type 9 and Type 41 tables, and
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to read the PCI IRQ Routing Table. Please include the output of each
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of these programs in any bug reports.
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biosdevname was written by Matt Domsch <Matt_Domsch@dell.com>
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This manual page was written by Rudy Gevaert <Rudy.Gevaert@UGent.be>,
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for the Debian project (but may be used by others).
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biosdevname.1
