protocol: 0xec is simply the GATT selection for file transfers

Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>

tuhi/protocol.py

@@ -74,9 +74,9 @@ class Interactions(enum.Enum):
     REGISTER_PRESS_BUTTON = enum.auto()
     REGISTER_WAIT_FOR_BUTTON = enum.auto()
     REGISTER_COMPLETE = enum.auto()
+    SET_FILE_TRANSFER_REPORTING_TYPE = enum.auto()
 
     UNKNOWN_E3 = enum.auto()
-    UNKNOWN_EC = enum.auto()
 
 
 def as_hex_string(data):
@@ -806,8 +806,12 @@ class MsgUnknownE3Command(Msg):
     # no arguments, uses the default 0xb3 handler
 
 
-class MsgUnknownECCommand(Msg):
-    interaction = Interactions.UNKNOWN_EC
+class MsgSetFileTransferReportingType(Msg):
+    '''
+    Changes where the device needs to send the data to.
+    0x00 is on the FFEE0003 GATT.
+    '''
+    interaction = Interactions.SET_FILE_TRANSFER_REPORTING_TYPE
     opcode = 0xec
     protocol = ProtocolVersion.ANY
 

tuhi/wacom.py

@@ -720,8 +720,8 @@ class WacomProtocolBase(WacomProtocolLowLevelComm):
         logger.info(f'dimensions: {msg.width}x{msg.height}')
         return msg.width, msg.height
 
-    def ec_command(self):
-        self.p.execute(Interactions.UNKNOWN_EC)
+    def select_transfer_gatt(self):
+        self.p.execute(Interactions.SET_FILE_TRANSFER_REPORTING_TYPE)
 
     def start_live(self, fd):
         self.p.execute(Interactions.SET_MODE, Mode.LIVE)
@@ -992,7 +992,7 @@ class WacomProtocolSlate(WacomProtocolSpark):
     def register_device_finish(self):
         self.set_time()
         self.read_time()
-        self.ec_command()
+        self.select_transfer_gatt()
         self.get_name()
 
         w, h = self.get_dimensions()
@@ -1016,7 +1016,7 @@ class WacomProtocolSlate(WacomProtocolSpark):
             self.notify('dimensions')
 
             self.get_firmware_version()
-            self.ec_command()
+            self.select_transfer_gatt()
             if self.read_offline_data() == 0:
                 logger.info('no data to retrieve')
         except WacomEEAGAINException: