diff --git a/drivers/net/wireless/iwlwifi/iwl-5000.c b/drivers/net/wireless/iwlwifi/iwl-5000.c
index c1300fb..56a3f0c 100644
--- a/drivers/net/wireless/iwlwifi/iwl-5000.c
+++ b/drivers/net/wireless/iwlwifi/iwl-5000.c
@@ -811,10 +811,14 @@
 
 	switch (priv->hw_rev & CSR_HW_REV_TYPE_MSK) {
 	case CSR_HW_REV_TYPE_5100:
+		priv->hw_params.tx_chains_num = 1;
+		priv->hw_params.rx_chains_num = 2;
+		priv->hw_params.valid_tx_ant = ANT_B;
+		priv->hw_params.valid_rx_ant = ANT_AB;
+		break;
 	case CSR_HW_REV_TYPE_5150:
 		priv->hw_params.tx_chains_num = 1;
 		priv->hw_params.rx_chains_num = 2;
-		/* FIXME: move to ANT_A, ANT_B, ANT_C enum */
 		priv->hw_params.valid_tx_ant = ANT_A;
 		priv->hw_params.valid_rx_ant = ANT_AB;
 		break;
diff --git a/drivers/net/wireless/iwlwifi/iwl-agn-rs.h b/drivers/net/wireless/iwlwifi/iwl-agn-rs.h
index d148d73..bac91f1 100644
--- a/drivers/net/wireless/iwlwifi/iwl-agn-rs.h
+++ b/drivers/net/wireless/iwlwifi/iwl-agn-rs.h
@@ -284,6 +284,16 @@
 		!!((mask) & ANT_C);
 }
 
+static inline u8 first_antenna(u8 mask)
+{
+	if (mask & ANT_A)
+		return ANT_A;
+	if (mask & ANT_B)
+		return ANT_B;
+	return ANT_C;
+}
+
+
 static inline u8 iwl4965_get_prev_ieee_rate(u8 rate_index)
 {
 	u8 rate = iwl_rates[rate_index].prev_ieee;
diff --git a/drivers/net/wireless/iwlwifi/iwl-sta.c b/drivers/net/wireless/iwlwifi/iwl-sta.c
index e02c471..a28a8de 100644
--- a/drivers/net/wireless/iwlwifi/iwl-sta.c
+++ b/drivers/net/wireless/iwlwifi/iwl-sta.c
@@ -845,7 +845,7 @@
 	struct iwl_link_quality_cmd link_cmd = {
 		.reserved1 = 0,
 	};
-	u16 rate_flags;
+	u32 rate_flags;
 
 	/* Set up the rate scaling to start at selected rate, fall back
 	 * all the way down to 1M in IEEE order, and then spin on 1M */
@@ -861,15 +861,16 @@
 		if (r >= IWL_FIRST_CCK_RATE && r <= IWL_LAST_CCK_RATE)
 			rate_flags |= RATE_MCS_CCK_MSK;
 
-		/* Use Tx antenna B only */
-		rate_flags |= RATE_MCS_ANT_B_MSK; /*FIXME:RS*/
+		rate_flags |= first_antenna(priv->hw_params.valid_tx_ant) <<
+				RATE_MCS_ANT_POS;
 
 		link_cmd.rs_table[i].rate_n_flags =
 			iwl_hw_set_rate_n_flags(iwl_rates[r].plcp, rate_flags);
 		r = iwl4965_get_prev_ieee_rate(r);
 	}
 
-	link_cmd.general_params.single_stream_ant_msk = 2;
+	link_cmd.general_params.single_stream_ant_msk =
+				first_antenna(priv->hw_params.valid_tx_ant);
 	link_cmd.general_params.dual_stream_ant_msk = 3;
 	link_cmd.agg_params.agg_dis_start_th = 3;
 	link_cmd.agg_params.agg_time_limit = cpu_to_le16(4000);