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432 Voice API for Windows Operating Systems Library Reference — November 2003
dx_unlisten( ) — disconnect voice receive channel from TDM bus
EDX_SH_BADINDX
Invalid Switch Handler index number
EDX_SH_BADLCLTS
Invalid channel number
EDX_SH_BADMODE
Function is not supported in current bus configuration
EDX_SH_BADTYPE
Invalid channel type (voice, analog, etc.)
EDX_SH_CMDBLOCK
Blocking command is in progress
EDX_SH_LCLDSCNCT
Channel is already disconnected from TDM bus
EDX_SH_LIBBSY
Switch Handler library is busy
EDX_SH_LIBNOTINIT
Switch Handler library is uninitialized
EDX_SH_MISSING
Switch Handler is not present
EDX_SH_NOCLK
Switch Handler clock failback failed
EDX_SYSTEM
Error from operating system; use dx_fileerrno( ) to obtain error value
!
!!
! Example
#include <windows.h>
#include <srllib.h>
#include <dxxxlib.h>
main()
{
int chdev; /* Voice Channel device handle */
/* Open board 1 channel 1 device */
if ((chdev = dx_open("dxxxB1C1", 0)) == -1) {
/* process error */
}
/* Disconnect receive of board 1, channel 1 from all TDM bus time slots */
if
(dx_unlisten(chdev)
== -1) {
printf("Error message = %s", ATDV_ERRMSGP(chdev));
exit(1);
}
}
!
!!
! See Also
• dx_listen( )