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

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

diff --git a/decoders/graycode/pd.py b/decoders/graycode/pd.py
index 1211c69efd88834a47cd84120cf287be5c6d4f4e..ef5d51352fe25356da1e9c47faf9c0487a5c3f4c 100644 (file)
--- a/decoders/graycode/pd.py
+++ b/decoders/graycode/pd.py
@@ -175,7 +175,7 @@ class Decoder(srd.Decoder):
             if self.options['edges']:
                 self.turns.set(self.samplenum, self.count.get() // self.options['edges'])
 
-            if self.samplerate is not None:
+            if self.samplerate:
                 period = (curtime - prevtime) / self.samplerate
                 freq = abs(phasedelta_raw) / period