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Technical Reference: Communications, Volume 1
The following parameter block
adds a group or multicast receive address:
struct dlc_add_grp
{
__ulong32_t gdlc_sap_corr; /* GDLC SAP correlator */
__ulong32_t grp_addr_len; /* group address length */
uchar_t grp_addr[DLC_MAX_ADDR]; /* grp addr to be added */
};
The fields of this ioctl
operation are:
gdlc_sap_corr
| Contains the generic data link control (GDLC) service access point (SAP)
Correlator being requested to add a group or multicast address to a
port.
|
grp_addr_len
| Contains the byte length of the group or multicast address to be
added.
|
grp_addr
| Contains the group or multicast address value to be added.
|
The DLC_ADD_GRP ioctl
operation is selectable through the fp_ioctl kernel service or the
ioctl subroutine. It can be called from the process
environment only.
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