graycode, morse, pwm, usb_request, wiegand: cope with absent sample rate

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

diff --git a/decoders/usb_request/pd.py b/decoders/usb_request/pd.py
index a4802845aa25681101011ce21cff17bfa1ab31cc..e77debc46d784a06372960285cea3844bfab8585 100644 (file)
--- a/decoders/usb_request/pd.py
+++ b/decoders/usb_request/pd.py
@@ -171,7 +171,8 @@ class Decoder(srd.Decoder):
     def metadata(self, key, value):
         if key == srd.SRD_CONF_SAMPLERATE:
             self.samplerate = value
     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)
 
     def start(self):
         self.out_binary = self.register(srd.OUTPUT_BINARY)