diff --git a/src/common/qca-vendor.h b/src/common/qca-vendor.h
index ee9ecadbd..aee861efc 100644
--- a/src/common/qca-vendor.h
+++ b/src/common/qca-vendor.h
@@ -1797,6 +1797,11 @@ enum qca_wlan_vendor_attr_p2p_listen_offload {
  * scoring. In case scan was performed on a partial set of channels configured
  * with this command within last QCA_WLAN_VENDOR_ATTR_ACS_LAST_SCAN_AGEOUT_TIME
  * (in ms), scan only the remaining channels.
+ *
+ * @QCA_WLAN_VENDOR_ATTR_ACS_LINK_ID: Mandatory on AP MLD (u8).
+ * Used with command to configure ACS operation for a specific link affiliated
+ * to an AP MLD.
+ *
  */
 enum qca_wlan_vendor_attr_acs_offload {
 	QCA_WLAN_VENDOR_ATTR_ACS_CHANNEL_INVALID = 0,
@@ -1820,6 +1825,7 @@ enum qca_wlan_vendor_attr_acs_offload {
 	QCA_WLAN_VENDOR_ATTR_ACS_PUNCTURE_BITMAP = 18,
 	QCA_WLAN_VENDOR_ATTR_ACS_EHT_ENABLED = 19,
 	QCA_WLAN_VENDOR_ATTR_ACS_LAST_SCAN_AGEOUT_TIME = 20,
+	QCA_WLAN_VENDOR_ATTR_ACS_LINK_ID = 21,
 
 	/* keep last */
 	QCA_WLAN_VENDOR_ATTR_ACS_AFTER_LAST,
@@ -2383,6 +2389,10 @@ enum qca_wlan_vendor_scan_priority {
  *	QCA_WLAN_VENDOR_SCAN_PRIORITY_HIGH as the priority of vendor scan.
  * @QCA_WLAN_VENDOR_ATTR_SCAN_PAD: Attribute used for padding for 64-bit
  *	alignment.
+ * @QCA_WLAN_VENDOR_ATTR_SCAN_LINK_ID: This u8 attribute is used for OBSS scan
+ *	when AP is operating as MLD to specify which link is requesting the
+ *	scan or which link the scan result is for. No need of this attribute
+ *	in other cases.
  */
 enum qca_wlan_vendor_attr_scan {
 	QCA_WLAN_VENDOR_ATTR_SCAN_INVALID_PARAM = 0,
@@ -2400,6 +2410,7 @@ enum qca_wlan_vendor_attr_scan {
 	QCA_WLAN_VENDOR_ATTR_SCAN_DWELL_TIME = 12,
 	QCA_WLAN_VENDOR_ATTR_SCAN_PRIORITY = 13,
 	QCA_WLAN_VENDOR_ATTR_SCAN_PAD = 14,
+	QCA_WLAN_VENDOR_ATTR_SCAN_LINK_ID = 15,
 	QCA_WLAN_VENDOR_ATTR_SCAN_AFTER_LAST,
 	QCA_WLAN_VENDOR_ATTR_SCAN_MAX =
 	QCA_WLAN_VENDOR_ATTR_SCAN_AFTER_LAST - 1