X-Git-Url: http://sigrok.org/gitweb/?a=blobdiff_plain;f=decoders%2Fir_nec%2Fpd.py;h=d14c7d33215b093fe0b74a6a23eb7d7c877d1eb3;hb=49d0e05ce73b2b8e47714b5d95e66e9b27aeaa4d;hp=d9091bede8bd16fbe3e5e30bfe7c1e3f2dd01635;hpb=e28f7aee3b96afeb543e0c3c29e3950ddd61a490;p=libsigrokdecode.git

diff --git a/decoders/ir_nec/pd.py b/decoders/ir_nec/pd.py
index d9091be..d14c7d3 100644
--- a/decoders/ir_nec/pd.py
+++ b/decoders/ir_nec/pd.py
@@ -21,6 +21,9 @@
 import sigrokdecode as srd
 from .lists import *
 
+class SamplerateError(Exception):
+    pass
+
 class Decoder(srd.Decoder):
     api_version = 2
     id = 'ir_nec'
@@ -148,8 +151,8 @@ class Decoder(srd.Decoder):
         return ret == 0
 
     def decode(self, ss, es, data):
-        if self.samplerate is None:
-            raise Exception("Cannot decode without samplerate.")
+        if not self.samplerate:
+            raise SamplerateError('Cannot decode without samplerate.')
         for (self.samplenum, pins) in data:
             self.ir = pins[0]
 
@@ -201,4 +204,3 @@ class Decoder(srd.Decoder):
                 self.state = 'IDLE'
 
             self.old_ir = self.ir
-