Description of the commands, a HL-driver has to support
All commands will be performed by calling the function command() described
above from within the LL. The field command of the struct-parameter will
contain the desired command, the field driver always is set to the
appropriate driver-Id.
Until now, the following commands are defined:
***CHANGED1.34: The parameter "num" has been replaced by a union "para" containing
the old "num" and a new setup_type struct used for ISDN_CMD_DIAL
and ISDN_STAT_ICALL callback.
ISDN_CMD_IOCTL
ISDN_CMD_DIAL
ISDN_CMD_ACCEPTD
ISDN_CMD_ACCEPTB
ISDN_CMD_HANGUP
ISDN_CMD_CLREAZ
ISDN_CMD_SETEAZ
ISDN_CMD_GETEAZ (currently unused)
ISDN_CMD_SETSIL (currently unused)
ISDN_CMD_GETSIL (currently unused)
ISDN_CMD_SETL2
ISDN_CMD_GETL2 (currently unused)
ISDN_CMD_SETL3
ISDN_CMD_GETL3 (currently unused)
ISDN_CMD_LOCK
ISDN_CMD_UNLOCK
