srd: PDs: Consistency/cosmetic fixes.

[libsigrokdecode.git] / decoders / i2cfilter / i2cfilter.py

diff --git a/decoders/i2cfilter/i2cfilter.py b/decoders/i2cfilter/i2cfilter.py
index 6c1f4c862e300d80dcfe457aa4ecdad00fa06ffd..afbee650717814d907da52221478d03ee7f50545 100644 (file)
--- a/decoders/i2cfilter/i2cfilter.py
+++ b/decoders/i2cfilter/i2cfilter.py
@@ -41,11 +41,11 @@ class Decoder(srd.Decoder):
     def start(self, metadata):
         self.out_proto = self.add(srd.OUTPUT_PROTO, 'i2cdata')
         if self.options['direction'] not in ('', 'read', 'write'):
-            raise Exception("Invalid direction: expected 'read' or 'write'")
+            raise Exception('Invalid direction: expected "read" or "write"')
 
     def decode(self, ss, es, data):
         try:
-            cmd, data, ack_bit = data
+            cmd, data = data
         except Exception as e:
             raise Exception('Malformed I2C input: %s' % str(e)) from e
 
@@ -57,6 +57,9 @@ class Decoder(srd.Decoder):
         if cmd == 'STOP':
             self.state = None
             return
+        if cmd in ('ACK', 'NACK'):
+            # Don't care, we just want data.
+            return
 
         if self.state == 'start':
             # Start of a transfer, see if we want this one.