Description of the events to be signaled by the HL-driver to the LL.
All status-changes are signaled via calling the previously described
function statcallb(). The field command of the struct isdn_cmd has
to be set by the HL-driver with the appropriate Status-Id (event-number).
The field arg has to be set to the channel-number (locally to the driver,
starting with 0) to which this event applies. (Exception: STAVAIL-event)
Until now, the following Status-Ids are defined:
ISDN_STAT_STAVAIL
ISDN_STAT_ICALL
ISDN_STAT_RUN
ISDN_STAT_STOP
ISDN_STAT_DCONN
ISDN_STAT_BCONN
ISDN_STAT_DHUP
ISDN_STAT_BHUP
ISDN_STAT_CINF
ISDN_STAT_LOAD (currently unused)
ISDN_STAT_UNLOAD
ISDN_STAT_BSENT
ISDN_STAT_NODCH
ISDN_STAT_ADDCH (currently unused)
ISDN_STAT_CAUSE
