diff --git a/sound/pci/asihpi/hpi6205.c b/sound/pci/asihpi/hpi6205.c
index 8831a6f179e3..d011932c952f 100644
--- a/sound/pci/asihpi/hpi6205.c
+++ b/sound/pci/asihpi/hpi6205.c
@@ -402,7 +402,6 @@ void _HPI_6205(struct hpi_adapter_obj *pao, struct hpi_message *phm,
 			adapter_message(pao, phm, phr);
 			break;
 
-		case HPI_OBJ_CONTROLEX:
 		case HPI_OBJ_CONTROL:
 			control_message(pao, phm, phr);
 			break;
@@ -2204,23 +2203,6 @@ static void hw_message(struct hpi_adapter_obj *pao, struct hpi_message *phm,
 			phm->u.d.u.data.data_size, H620_HIF_GET_DATA);
 		break;
 
-	case HPI_CONTROL_SET_STATE:
-		if (phm->object == HPI_OBJ_CONTROLEX
-			&& phm->u.cx.attribute == HPI_COBRANET_SET_DATA)
-			err = hpi6205_transfer_data(pao,
-				phm->u.cx.u.cobranet_bigdata.pb_data,
-				phm->u.cx.u.cobranet_bigdata.byte_count,
-				H620_HIF_SEND_DATA);
-		break;
-
-	case HPI_CONTROL_GET_STATE:
-		if (phm->object == HPI_OBJ_CONTROLEX
-			&& phm->u.cx.attribute == HPI_COBRANET_GET_DATA)
-			err = hpi6205_transfer_data(pao,
-				phm->u.cx.u.cobranet_bigdata.pb_data,
-				phr->u.cx.u.cobranet_data.byte_count,
-				H620_HIF_GET_DATA);
-		break;
 	}
 	phr->error = err;
 
diff --git a/sound/pci/asihpi/hpi_internal.h b/sound/pci/asihpi/hpi_internal.h
index ce5d7cda6dad..848fb7596ae4 100644
--- a/sound/pci/asihpi/hpi_internal.h
+++ b/sound/pci/asihpi/hpi_internal.h
@@ -226,8 +226,8 @@ enum HPI_CONTROL_ATTRIBUTES {
 
 	HPI_COBRANET_SET = HPI_CTL_ATTR(COBRANET, 1),
 	HPI_COBRANET_GET = HPI_CTL_ATTR(COBRANET, 2),
-	HPI_COBRANET_SET_DATA = HPI_CTL_ATTR(COBRANET, 3),
-	HPI_COBRANET_GET_DATA = HPI_CTL_ATTR(COBRANET, 4),
+	/*HPI_COBRANET_SET_DATA         = HPI_CTL_ATTR(COBRANET, 3), */
+	/*HPI_COBRANET_GET_DATA         = HPI_CTL_ATTR(COBRANET, 4), */
 	HPI_COBRANET_GET_STATUS = HPI_CTL_ATTR(COBRANET, 5),
 	HPI_COBRANET_SEND_PACKET = HPI_CTL_ATTR(COBRANET, 6),
 	HPI_COBRANET_GET_PACKET = HPI_CTL_ATTR(COBRANET, 7),
@@ -383,7 +383,7 @@ enum HPI_OBJECT_TYPES {
 	HPI_OBJ_WATCHDOG = 10,
 	HPI_OBJ_CLOCK = 11,
 	HPI_OBJ_PROFILE = 12,
-	HPI_OBJ_CONTROLEX = 13,
+	/* HPI_ OBJ_ CONTROLEX  = 13, */
 	HPI_OBJ_ASYNCEVENT = 14
 #define HPI_OBJ_MAXINDEX 14
 };
@@ -912,95 +912,13 @@ union hpi_control_union_res {
 		u32 remaining_chars;
 	} chars8;
 	char c_data12[12];
-};
-
-/* HPI_CONTROLX_STRUCTURES */
-
-/* Message */
-
-/** Used for all HMI variables where max length <= 8 bytes
-*/
-struct hpi_controlx_msg_cobranet_data {
-	u32 hmi_address;
-	u32 byte_count;
-	u32 data[2];
-};
-
-/** Used for string data, and for packet bridge
-*/
-struct hpi_controlx_msg_cobranet_bigdata {
-	u32 hmi_address;
-	u32 byte_count;
-	u8 *pb_data;
-#ifndef HPI64BIT
-	u32 padding;
-#endif
-};
-
-/** Used for PADS control reading of string fields.
-*/
-struct hpi_controlx_msg_pad_data {
-	u32 field;
-	u32 byte_count;
-	u8 *pb_data;
-#ifndef HPI64BIT
-	u32 padding;
-#endif
-};
-
-/** Used for generic data
-*/
-
-struct hpi_controlx_msg_generic {
-	u32 param1;
-	u32 param2;
-};
-
-struct hpi_controlx_msg {
-	u16 attribute;		/* control attribute or property */
-	u16 saved_index;
 	union {
-		struct hpi_controlx_msg_cobranet_data cobranet_data;
-		struct hpi_controlx_msg_cobranet_bigdata cobranet_bigdata;
-		struct hpi_controlx_msg_generic generic;
-		struct hpi_controlx_msg_pad_data pad_data;
-		/*struct param_value universal_value; */
-		/* nothing extra to send for status read */
-	} u;
-};
-
-/* Response */
-/**
-*/
-struct hpi_controlx_res_cobranet_data {
-	u32 byte_count;
-	u32 data[2];
-};
-
-struct hpi_controlx_res_cobranet_bigdata {
-	u32 byte_count;
-};
-
-struct hpi_controlx_res_cobranet_status {
-	u32 status;
-	u32 readable_size;
-	u32 writeable_size;
-};
-
-struct hpi_controlx_res_generic {
-	u32 param1;
-	u32 param2;
-};
-
-struct hpi_controlx_res {
-	union {
-		struct hpi_controlx_res_cobranet_bigdata cobranet_bigdata;
-		struct hpi_controlx_res_cobranet_data cobranet_data;
-		struct hpi_controlx_res_cobranet_status cobranet_status;
-		struct hpi_controlx_res_generic generic;
-		/*struct param_info universal_info; */
-		/*struct param_value universal_value; */
-	} u;
+		struct {
+			u32 status;
+			u32 readable_size;
+			u32 writeable_size;
+		} status;
+	} cobranet;
 };
 
 struct hpi_nvmemory_msg {
@@ -1126,7 +1044,6 @@ struct hpi_message {
 		/* identical to struct hpi_control_msg,
 		   but field naming is improved */
 		struct hpi_control_union_msg cu;
-		struct hpi_controlx_msg cx;	/* extended mixer control; */
 		struct hpi_nvmemory_msg n;
 		struct hpi_gpio_msg l;	/* digital i/o */
 		struct hpi_watchdog_msg w;
@@ -1151,7 +1068,7 @@ struct hpi_message {
 	sizeof(struct hpi_message_header) + sizeof(struct hpi_watchdog_msg),\
 	sizeof(struct hpi_message_header) + sizeof(struct hpi_clock_msg),\
 	sizeof(struct hpi_message_header) + sizeof(struct hpi_profile_msg),\
-	sizeof(struct hpi_message_header) + sizeof(struct hpi_controlx_msg),\
+	sizeof(struct hpi_message_header), /* controlx obj removed */ \
 	sizeof(struct hpi_message_header) + sizeof(struct hpi_async_msg) \
 }
 
@@ -1188,7 +1105,6 @@ struct hpi_response {
 		struct hpi_control_res c;	/* mixer control; */
 		/* identical to hpi_control_res, but field naming is improved */
 		union hpi_control_union_res cu;
-		struct hpi_controlx_res cx;	/* extended mixer control; */
 		struct hpi_nvmemory_res n;
 		struct hpi_gpio_res l;	/* digital i/o */
 		struct hpi_watchdog_res w;
@@ -1213,7 +1129,7 @@ struct hpi_response {
 	sizeof(struct hpi_response_header) + sizeof(struct hpi_watchdog_res),\
 	sizeof(struct hpi_response_header) + sizeof(struct hpi_clock_res),\
 	sizeof(struct hpi_response_header) + sizeof(struct hpi_profile_res),\
-	sizeof(struct hpi_response_header) + sizeof(struct hpi_controlx_res),\
+	sizeof(struct hpi_response_header), /* controlx obj removed */ \
 	sizeof(struct hpi_response_header) + sizeof(struct hpi_async_res) \
 }
 
@@ -1308,6 +1224,30 @@ struct hpi_res_adapter_debug_read {
 	u8 bytes[256];
 };
 
+struct hpi_msg_cobranet_hmi {
+	u16 attribute;
+	u16 padding;
+	u32 hmi_address;
+	u32 byte_count;
+};
+
+struct hpi_msg_cobranet_hmiwrite {
+	struct hpi_message_header h;
+	struct hpi_msg_cobranet_hmi p;
+	u8 bytes[256];
+};
+
+struct hpi_msg_cobranet_hmiread {
+	struct hpi_message_header h;
+	struct hpi_msg_cobranet_hmi p;
+};
+
+struct hpi_res_cobranet_hmiread {
+	struct hpi_response_header h;
+	u32 byte_count;
+	u8 bytes[256];
+};
+
 #if 1
 #define hpi_message_header_v1 hpi_message_header
 #define hpi_response_header_v1 hpi_response_header
@@ -1338,7 +1278,6 @@ struct hpi_msg_payload_v0 {
 		union hpi_mixerx_msg mx;
 		struct hpi_control_msg c;
 		struct hpi_control_union_msg cu;
-		struct hpi_controlx_msg cx;
 		struct hpi_nvmemory_msg n;
 		struct hpi_gpio_msg l;
 		struct hpi_watchdog_msg w;
@@ -1358,7 +1297,6 @@ struct hpi_res_payload_v0 {
 		union hpi_mixerx_res mx;
 		struct hpi_control_res c;
 		union hpi_control_union_res cu;
-		struct hpi_controlx_res cx;
 		struct hpi_nvmemory_res n;
 		struct hpi_gpio_res l;
 		struct hpi_watchdog_res w;
diff --git a/sound/pci/asihpi/hpifunc.c b/sound/pci/asihpi/hpifunc.c
index 7397b169b89f..ebb568d695f1 100644
--- a/sound/pci/asihpi/hpifunc.c
+++ b/sound/pci/asihpi/hpifunc.c
@@ -1663,68 +1663,64 @@ u16 hpi_channel_mode_get(u32 h_control, u16 *mode)
 u16 hpi_cobranet_hmi_write(u32 h_control, u32 hmi_address, u32 byte_count,
 	u8 *pb_data)
 {
-	struct hpi_message hm;
-	struct hpi_response hr;
+	struct hpi_msg_cobranet_hmiwrite hm;
+	struct hpi_response_header hr;
 
-	hpi_init_message_response(&hm, &hr, HPI_OBJ_CONTROLEX,
-		HPI_CONTROL_SET_STATE);
-	if (hpi_handle_indexes(h_control, &hm.adapter_index, &hm.obj_index))
+	hpi_init_message_responseV1(&hm.h, sizeof(hm), &hr, sizeof(hr),
+		HPI_OBJ_CONTROL, HPI_CONTROL_SET_STATE);
+
+	if (hpi_handle_indexes(h_control, &hm.h.adapter_index,
+			&hm.h.obj_index))
 		return HPI_ERROR_INVALID_HANDLE;
 
-	hm.u.cx.u.cobranet_data.byte_count = byte_count;
-	hm.u.cx.u.cobranet_data.hmi_address = hmi_address;
+	if (byte_count > sizeof(hm.bytes))
+		return HPI_ERROR_MESSAGE_BUFFER_TOO_SMALL;
 
-	if (byte_count <= 8) {
-		memcpy(hm.u.cx.u.cobranet_data.data, pb_data, byte_count);
-		hm.u.cx.attribute = HPI_COBRANET_SET;
-	} else {
-		hm.u.cx.u.cobranet_bigdata.pb_data = pb_data;
-		hm.u.cx.attribute = HPI_COBRANET_SET_DATA;
-	}
-
-	hpi_send_recv(&hm, &hr);
+	hm.p.attribute = HPI_COBRANET_SET;
+	hm.p.byte_count = byte_count;
+	hm.p.hmi_address = hmi_address;
+	memcpy(hm.bytes, pb_data, byte_count);
+	hm.h.size = (u16)(sizeof(hm.h) + sizeof(hm.p) + byte_count);
 
+	hpi_send_recvV1(&hm.h, &hr);
 	return hr.error;
 }
 
 u16 hpi_cobranet_hmi_read(u32 h_control, u32 hmi_address, u32 max_byte_count,
 	u32 *pbyte_count, u8 *pb_data)
 {
-	struct hpi_message hm;
-	struct hpi_response hr;
+	struct hpi_msg_cobranet_hmiread hm;
+	struct hpi_res_cobranet_hmiread hr;
 
-	hpi_init_message_response(&hm, &hr, HPI_OBJ_CONTROLEX,
-		HPI_CONTROL_GET_STATE);
-	if (hpi_handle_indexes(h_control, &hm.adapter_index, &hm.obj_index))
+	hpi_init_message_responseV1(&hm.h, sizeof(hm), &hr.h, sizeof(hr),
+		HPI_OBJ_CONTROL, HPI_CONTROL_GET_STATE);
+
+	if (hpi_handle_indexes(h_control, &hm.h.adapter_index,
+			&hm.h.obj_index))
 		return HPI_ERROR_INVALID_HANDLE;
 
-	hm.u.cx.u.cobranet_data.byte_count = max_byte_count;
-	hm.u.cx.u.cobranet_data.hmi_address = hmi_address;
+	if (max_byte_count > sizeof(hr.bytes))
+		return HPI_ERROR_RESPONSE_BUFFER_TOO_SMALL;
 
-	if (max_byte_count <= 8) {
-		hm.u.cx.attribute = HPI_COBRANET_GET;
-	} else {
-		hm.u.cx.u.cobranet_bigdata.pb_data = pb_data;
-		hm.u.cx.attribute = HPI_COBRANET_GET_DATA;
-	}
+	hm.p.attribute = HPI_COBRANET_GET;
+	hm.p.byte_count = max_byte_count;
+	hm.p.hmi_address = hmi_address;
 
-	hpi_send_recv(&hm, &hr);
-	if (!hr.error && pb_data) {
+	hpi_send_recvV1(&hm.h, &hr.h);
 
-		*pbyte_count = hr.u.cx.u.cobranet_data.byte_count;
+	if (!hr.h.error && pb_data) {
+		if (hr.byte_count > sizeof(hr.bytes))
 
-		if (*pbyte_count < max_byte_count)
+			return HPI_ERROR_RESPONSE_BUFFER_TOO_SMALL;
+
+		*pbyte_count = hr.byte_count;
+
+		if (hr.byte_count < max_byte_count)
 			max_byte_count = *pbyte_count;
 
-		if (hm.u.cx.attribute == HPI_COBRANET_GET) {
-			memcpy(pb_data, hr.u.cx.u.cobranet_data.data,
-				max_byte_count);
-		} else {
-
-		}
-
+		memcpy(pb_data, hr.bytes, max_byte_count);
 	}
-	return hr.error;
+	return hr.h.error;
 }
 
 u16 hpi_cobranet_hmi_get_status(u32 h_control, u32 *pstatus,
@@ -1733,23 +1729,23 @@ u16 hpi_cobranet_hmi_get_status(u32 h_control, u32 *pstatus,
 	struct hpi_message hm;
 	struct hpi_response hr;
 
-	hpi_init_message_response(&hm, &hr, HPI_OBJ_CONTROLEX,
+	hpi_init_message_response(&hm, &hr, HPI_OBJ_CONTROL,
 		HPI_CONTROL_GET_STATE);
 	if (hpi_handle_indexes(h_control, &hm.adapter_index, &hm.obj_index))
 		return HPI_ERROR_INVALID_HANDLE;
 
-	hm.u.cx.attribute = HPI_COBRANET_GET_STATUS;
+	hm.u.c.attribute = HPI_COBRANET_GET_STATUS;
 
 	hpi_send_recv(&hm, &hr);
 	if (!hr.error) {
 		if (pstatus)
-			*pstatus = hr.u.cx.u.cobranet_status.status;
+			*pstatus = hr.u.cu.cobranet.status.status;
 		if (preadable_size)
 			*preadable_size =
-				hr.u.cx.u.cobranet_status.readable_size;
+				hr.u.cu.cobranet.status.readable_size;
 		if (pwriteable_size)
 			*pwriteable_size =
-				hr.u.cx.u.cobranet_status.writeable_size;
+				hr.u.cu.cobranet.status.writeable_size;
 	}
 	return hr.error;
 }