X-Git-Url: http://sigrok.org/gitweb/?a=blobdiff_plain;f=decoders%2Fusb_request%2Fpd.py;h=49b0b3501dcc272a315375e9d185a01d4ee60941;hb=2787cf2abc0187679e87d3735ca3e64c2a1a91c8;hp=a4802845aa25681101011ce21cff17bfa1ab31cc;hpb=10aeb8ea8b183394cebc0033f048f49f4262b57d;p=libsigrokdecode.git

diff --git a/decoders/usb_request/pd.py b/decoders/usb_request/pd.py
index a480284..49b0b35 100644
--- a/decoders/usb_request/pd.py
+++ b/decoders/usb_request/pd.py
@@ -116,10 +116,11 @@ class Decoder(srd.Decoder):
     id = 'usb_request'
     name = 'USB request'
     longname = 'Universal Serial Bus (LS/FS) transaction/request'
-    desc = 'USB (low-speed and full-speed) transaction/request protocol.'
+    desc = 'USB (low-speed/full-speed) transaction/request protocol.'
     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)