usb_{packet,request}: handle PREamble transmissions

[libsigrokdecode.git] / decoders / usb_request / pd.py

diff --git a/decoders/usb_request/pd.py b/decoders/usb_request/pd.py
index 4227856a2d394b08b29e33eede08f5c0f9347ada..4526e693fd1abb255551152557d28fe269300a70 100644 (file)
--- a/decoders/usb_request/pd.py
+++ b/decoders/usb_request/pd.py
@@ -350,6 +350,9 @@ class Decoder(srd.Decoder):
             self.transaction_es = es
             self.handle_transfer()
 
+        elif pname == 'PRE':
+            return
+
         else:
             self.putr(ss, es, [4, ['ERR: received unhandled %s token in state %s' %
                 (pname, self.transaction_state)]])