NOTE: This driver has not been ported from
4.4BSD yet.
NOTE: At the moment,
NetBSD does not support IMP, so this manual page is not relevant.
The
hdh device provides an HDLC Host (HDH) interface to an IMP. It is normally used when participating in the DARPA Internet. The controller itself is not accessible to users, but instead provides the hardware support to the IMP interface described in
imp(4). The configuration entry for the IMP must also include the
pseudo-device as shown above in the
SYNOPSIS.