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OFCTL(8) NetBSD System Manager's Manual OFCTL(8)
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Maintained for NetBSD
by Kimmo Suominen.
Based on man-cgi by Panagiotis Christias.
ofctl -- display the OpenPROM or OpenFirmware device tree
ofctl [-lpv] [-f file] [-r propfile] [-w propfile] [node]
ofctl provides an interface for displaying the OpenPROM or OpenFirmware
device tree and node properties. The ofctl program is only installed on
Without any arguments, ofctl will dump the full tree. When given the
name of a specific node, ofctl will display that node and its child
The options are as follows:
-f file On systems with OpenPROM, use file instead of the
default /dev/openprom. On systems with OpenFirmware,
use file instead of the default /dev/openfirm.
-l Dump a partial tree starting from node.
-p Display each node's properties.
-r propfile Instead of reading from the openprom or openfirm
device, use the proplib file propfile as input. See
-v Display the full path name for each node.
-w propfile Write the device tree to the proplib file propfile.
See also -r.
/dev/openprom The openprom device on systems with OpenPROM.
/dev/openfirm The openfirm device on systems with OpenFirmware.
NetBSD 9.1 May 28, 2018 NetBSD 9.1