The DLC_ENTER_LBUSY 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 enters local busy mode on a particular 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 | Contains the GDLC SAP correlator of the target LS. |
| gdlc_ls_corr | Contains the GDLC LS correlator to enter local busy mode. |