decoders: Add/update tags for each PD.

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

diff --git a/decoders/usb_request/pd.py b/decoders/usb_request/pd.py
index a4802845aa25681101011ce21cff17bfa1ab31cc..2835bf9036142314adff4d167173b0997b799124 100644 (file)
--- a/decoders/usb_request/pd.py
+++ b/decoders/usb_request/pd.py
@@ -120,6 +120,7 @@ class Decoder(srd.Decoder):
     license = 'gplv2+'
     inputs = ['usb_packet']
     outputs = ['usb_request']
+    tags = ['PC']
     annotations = (
         ('request-setup-read', 'Setup: Device-to-host'),
         ('request-setup-write', 'Setup: Host-to-device'),
@@ -171,7 +172,8 @@ class Decoder(srd.Decoder):
     def metadata(self, key, value):
         if key == srd.SRD_CONF_SAMPLERATE:
             self.samplerate = value
-            self.secs_per_sample = float(1) / float(self.samplerate)
+            if self.samplerate:
+                self.secs_per_sample = float(1) / float(self.samplerate)
 
     def start(self):
         self.out_binary = self.register(srd.OUTPUT_BINARY)