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

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 supported platforms.

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 nodes.

The options are as follows:

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.
Dump a partial tree starting from node.
Display each node's properties.
propfile
Instead of reading from the openprom or openfirm device, use the proplib file propfile as input. See also -w.
Display the full path name for each node.
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.

eeprom(8)

May 28, 2018 NetBSD 11.0