Description:

The devfsd programme is a daemon, run by the system boot scripts which
can provide for intelligent management of device entries in the Device
Filesystem (devfs).

As part of its setup phase devfsd creates certain symbolic links which
are compiled into the code. These links are required by
/usr/src/linux/Documentation/devices.txt. This behaviour may change in
future revisions.

devfsd will read the special control file .devfsd in a mounted devfs,
listening for the creation and removal of device entries (this is
termed a change operation). For each change operation, devfsd can take
many actions. The daemon will normally run itself in the background
and send messages to syslog.

The opening of the syslog service is automatically delayed until
/dev/log is created.

At startup, before switching to daemon mode, devfsd will scan the
mounted device tree and will generate synthetic REGISTER events for
each leaf node.