4 files changed, 13 insertions, 15 deletions

diff --git a/glucometerutils/drivers/otultraeasy.py b/glucometerutils/drivers/otultraeasy.py
index 8e794ca..f0e16a7 100644
--- a/glucometerutils/drivers/otultraeasy.py
+++ b/glucometerutils/drivers/otultraeasy.py
@@ -116,7 +116,7 @@ class Device(serial.SerialDevice):
 
     def _send_packet(self, message, acknowledge=False, disconnect=False):
         pkt = _PACKET.build(
-            {'value': {
+            {'data': {'value': {
                 'message': message,
                 'link_control': {
                     'sequence_number': self.sent_counter_,
@@ -124,14 +124,14 @@ class Device(serial.SerialDevice):
                     'acknowledge': acknowledge,
                     'disconnect': disconnect,
                 },
-            }})
+            }}})
         logging.debug('sending packet: %s', binascii.hexlify(pkt))
 
         self.serial_.write(pkt)
         self.serial_.flush()
 
     def _read_packet(self):
-        raw_pkt = self.buffered_reader_.parse_stream(self.serial_)
+        raw_pkt = self.buffered_reader_.parse_stream(self.serial_).data
         logging.debug('received packet: %r', raw_pkt)
 
         # discard the checksum and copy
diff --git a/glucometerutils/drivers/otverio2015.py b/glucometerutils/drivers/otverio2015.py
index 2589a97..833ad43 100644
--- a/glucometerutils/drivers/otverio2015.py
+++ b/glucometerutils/drivers/otverio2015.py
@@ -42,8 +42,8 @@ from glucometerutils.support import lifescan_binary_protocol
 _REGISTER_SIZE = 512
 
 _PACKET = construct.Padded(
-    _REGISTER_SIZE, construct.Embedded(
-        lifescan_binary_protocol.LifeScanPacket(0x03, False)))
+    _REGISTER_SIZE,
+        lifescan_binary_protocol.LifeScanPacket(0x03, False))
 
 _QUERY_REQUEST = construct.Struct(
     construct.Const(b'\xe6\x02'),
@@ -157,9 +157,9 @@ class Device(object):
         """
         try:
             request = request_format.build(request_obj)
-            request_raw = _PACKET.build({'value': {
+            request_raw = _PACKET.build({'data': {'value': {
                 'message': request,
-            }})
+            }}})
             logging.debug(
                 'Request sent: %s', binascii.hexlify(request_raw))
             self.scsi_.write10(lba, 1, request_raw)
@@ -167,7 +167,7 @@ class Device(object):
             response_raw = self.scsi_.read10(lba, 1)
             logging.debug(
                 'Response received: %s', binascii.hexlify(response_raw.datain))
-            response_pkt = _PACKET.parse(response_raw.datain)
+            response_pkt = _PACKET.parse(response_raw.datain).data
             logging.debug('Response packet: %r', response_pkt)
 
             response = response_format.parse(response_pkt.value.message)
diff --git a/glucometerutils/drivers/otverioiq.py b/glucometerutils/drivers/otverioiq.py
index 669900e..cecac4e 100644
--- a/glucometerutils/drivers/otverioiq.py
+++ b/glucometerutils/drivers/otverioiq.py
@@ -120,16 +120,16 @@ class Device(serial.SerialDevice):
 
     def _send_packet(self, message):
         pkt = _PACKET.build(
-            {'value': {
+            {'data': {'value': {
                 'message': message,
-            }})
+            }}})
         logging.debug('sending packet: %s', binascii.hexlify(pkt))
 
         self.serial_.write(pkt)
         self.serial_.flush()
 
     def _read_packet(self):
-        raw_pkt = self.buffered_reader_.parse_stream(self.serial_)
+        raw_pkt = self.buffered_reader_.parse_stream(self.serial_).data
         logging.debug('received packet: %r', raw_pkt)
 
         # discard the checksum and copy
diff --git a/glucometerutils/support/lifescan_binary_protocol.py b/glucometerutils/support/lifescan_binary_protocol.py
index 6579ab0..22e96d9 100644
--- a/glucometerutils/support/lifescan_binary_protocol.py
+++ b/glucometerutils/support/lifescan_binary_protocol.py
@@ -36,8 +36,7 @@ def LifeScanPacket(command_prefix, include_link_control):
     command_prefix_construct = construct.Const(command_prefix, construct.Byte)
 
     return construct.Struct(
-        construct.RawCopy(
-            construct.Embedded(
+        'data' / construct.RawCopy(
                 construct.Struct(
                     construct.Const(b'\x02'),  # stx
                     'length' / construct.Rebuild(
@@ -48,10 +47,9 @@ def LifeScanPacket(command_prefix, include_link_control):
                         length=lambda ctx: ctx.length - 7),
                     construct.Const(b'\x03'),  # etx
                 ),
-            ),
         ),
         'checksum' / construct.Checksum(
-            construct.Int16ul, lifescan.crc_ccitt, construct.this.data),
+            construct.Int16ul, lifescan.crc_ccitt, construct.this.data.data),
     )
 
 COMMAND_SUCCESS = construct.Const(b'\x06')