decode: handle FUNCTION_CLASS_INTERFACE requests like CONTROL_TRANSFER

The Novatel USB551L uses these to send data to the device, but the data
is QMUX.

decode/packet.py

@@ -43,7 +43,7 @@ funcs = {
     "-- URB_FUNCTION_CONTROL_TRANSFER:":           (URBF_CONTROL, True, "C"),
     "-- URB_FUNCTION_SET_FEATURE_TO_DEVICE:":      (URBF_SET_FEATURE, False, None),
     "-- URB_FUNCTION_ABORT_PIPE:":                 (URBF_SET_FEATURE, False, None),
-    "-- URB_FUNCTION_CLASS_INTERFACE:":            (URBF_CLASS_IFACE, False, None),
+    "-- URB_FUNCTION_CLASS_INTERFACE:":            (URBF_CLASS_IFACE, True, "C"),
     "-- URB_FUNCTION_CLEAR_FEATURE_TO_DEVICE:":    (URBF_CLEAR_FEATURE, False, None)
 }
 
@@ -127,7 +127,7 @@ class Packet:
 
                 if self.func == URBF_TRANSFER:
                     self.protocol = self.transfer_prot
-                elif self.func == URBF_CONTROL:
+                elif self.func == URBF_CONTROL or self.func == URBF_CLASS_IFACE:
                     self.protocol = self.control_prot
 
                 if self.protocol:
@@ -140,7 +140,7 @@ class Packet:
             self.in_data = True
             return False   # not done; need more lines
 
-        if line.find("UrbLink              = ") >= 0:
+        if line.find("UrbLink              = ") >= 0 or line.find("UrbLink                 =") >= 0:
             if self.in_data:
                 self.in_data = False
 

decode/qmux.py

@@ -65,6 +65,8 @@ class Tlv:
             cmd = svc[1][self.cmdno]
         except KeyError:
             pass
+        except TypeError:
+            pass
         tlvlist = None
         if self.direction == TP_REQUEST:
             tlvlist = cmd[1]
@@ -184,6 +186,8 @@ def show(data, prefix, direction):
         scmd = qmi_cmd_to_string(cmdno, service)
     except KeyError:
         pass
+    except TypeError:
+        pass
     print prefix + "  Cmd:    0x%04x (%s)" % (cmdno, scmd)
 
     print prefix + "  Size:   0x%04x" % size