diff --git a/drivers/bluetooth/btmtk.c b/drivers/bluetooth/btmtk.c
index f2224eb0bf6b..bf9bfed3da23 100644
--- a/drivers/bluetooth/btmtk.c
+++ b/drivers/bluetooth/btmtk.c
@@ -31,7 +31,7 @@
 #define BTMTK_CBMCU_FLAG_ENABLE_PATCH	0xF1
 
 /* It is for mt79xx iso data transmission setting */
-#define MTK_ISO_THRESHOLD	264
+#define MTK_ISO_THRESHOLD	342
 
 struct btmtk_patch_header {
 	u8 datetime[16];
@@ -1741,7 +1741,7 @@ static int btmtk_submit_intr_urb(struct hci_dev *hdev, gfp_t mem_flags)
 static int btmtk_usb_isointf_init(struct hci_dev *hdev)
 {
 	struct btmtk_data *btmtk_data = hci_get_priv(hdev);
-	u8 iso_param[2] = { 0x08, 0x01 };
+	__le16 iso_param = cpu_to_le16(MTK_ISO_THRESHOLD);
 	struct sk_buff *skb;
 	int err;
 
@@ -1756,7 +1756,7 @@ static int btmtk_usb_isointf_init(struct hci_dev *hdev)
 		return err;
 	}
 
-	skb = __hci_cmd_sync(hdev, 0xfd98, sizeof(iso_param), iso_param,
+	skb = __hci_cmd_sync(hdev, 0xfd98, sizeof(iso_param), &iso_param,
 			     HCI_INIT_TIMEOUT);
 	if (IS_ERR(skb)) {
 		bt_dev_err(hdev, "Failed to apply iso setting (%ld)", PTR_ERR(skb));