Technical Reference: Communications, Volume 1

DLC_TEST ioctl Operation for DLC

The DLC_TEST ioctl operation is selectable through the fp_ioctl kernel service or the ioctl subroutine. It can be called from the process environment only.

The following parameter block tests the link to a remote for a particular local link station (LS):

struct dlc_corr_arg { __ulong32_t gdlc_sap_corr; /* GDLC SAP correlator */ __ulong32_t gdlc_ls_corr; /* GDLC link station correlator */ };

The fields of this ioctl operation are:

Field	Description
`gdlc_sap_corr`	Indicates the GDLC SAP correlator of the target LS.
`gdlc_ls_corr`	Indicates the GDLC LS correlator to be tested.