isdnB1config(D4isdn)

isdnB1config -- ISDN physical layer and framing parameters configuration structure

Synopsis

   #include <sys/types.h>
   #include <sys/scoisdn.h>
   
   typedef struct isdnBproto {
       ...
   

       struct isdnB1config {
        isdnWord_t   rate;
        isdnWord_t   dataBits;
        isdnWord_t   parity;
        isdnWord_t   stopBits;
       } B1config;
   

       ...
   } isdnBproto_t;

Description

The isdnB1config structure offers offers additional configuration information for the B1 protocol specified in isdnB1proto(D4isdn). The complete B-channel protocol information is defined by isdnBproto(D4isdn).

Parameters

These parameters have different meanings and default values depending on the selected B1 protocol:

rate

B1 protocol 0:: not applicable
B1 protocol 1:: not applicable
B1 protocol 2:: the maximum bit rate, coded as an unsigned integer value. Default: adaptive.
B1 protocol 3:: the maximum bit rate, coded as an unsigned integer value. Default: 56 Kbps.
B1 protocol 4:: the maximum bit rate, coded as an unsigned integer value. Default: adaptive.
B1 protocol 5:: not applicable
B1 protocol 6:: not applicable

dataBits (bits per character/transmit level)

B1 protocol 0:: not applicable
B1 protocol 1:: not applicable
B1 protocol 2:: bits per character, coded as an unsigned integer value. Default: 8.
B1 protocol 3:: not applicable
B1 protocol 4:: the level is coded as a signed integer specifying dB's. If this parameter or its value is not supported by the ISDN controller, it is ignored.
B1 protocol 5:: not applicable
B1 protocol 6:: not applicable

parity

B1 protocol 0:: not applicable
B1 protocol 1:: not applicable
B1 protocol 2:: 0 = none, 1 = odd, 2 = even. Default: no parity.
B1 protocol 3:: not applicable
B1 protocol 4:: not applicable
B1 protocol 5:: not applicable
B1 protocol 6:: not applicable

stopBits

B1 protocol 0:: not applicable
B1 protocol 1:: not applicable
B1 protocol 2:: 0 = 1 stop bit, 1 = 2 stop bits. Default: 1 stop bit.
B1 protocol 3:: not applicable
B1 protocol 4:: not applicable
B1 protocol 5:: not applicable
B1 protocol 6:: not applicable

References

Intro(D4isdn), Intro(D7isdn)

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