Wait for dahdi spans to get (un)assigned
DAHDI spans get assigned / unassigned asynchronously.
dahdi_span_assignments is a helper script that allows running commands after all the spans have been assigned or unassigned.
It takes a single command: assigned or unassigned and waits (up until a timeout of 5 seconds) for all the DAHDI spans in the system to do so.
Note that if the system has a span that will not get assigned automatically (e.g.: it's not in assigned-spans.conf), this program does not know and will wait until a timeout.
modprobe wctdm24xxp dahdi_waitfor_span_assignments assigned do_something
dahdi_span_assignments add dahdi_waitfor_span_assignments assigned do_something_else
dahdi_span_assignments remove dahdi_span_assignments unassigned do_something_completely_different
dahdi_waitfor_span_assignments was written by Oron Peled. This manual page was written by Tzafrir Cohen. Permission is granted to copy, distribute and/or modify this document under the terms of the GNU General Public License, Version 2 any later version published by the Free Software Foundation.