isdnHLC(D4isdn)

isdnHLC -- ISDN high layer compatibility structure

Synopsis

   #include <sys/types.h>
   #include <sys/scoisdn.h>
   
   typedef struct isdnHLC
   {
       void    *dummy;     /* ## Q.931 */
   } isdnHLC_t;

The isdnHLC parameter provides the means for compatibility checking for the remote user, and is coded according to Q.931.

``SCO ISDN adapter drivers'' in Developing MDI network adapter drivers.