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authorChristopher Peplin <chris.peplin@rhubarbtech.com>2014-02-28 14:48:36 -0500
committerChristopher Peplin <chris.peplin@rhubarbtech.com>2014-02-28 14:48:36 -0500
commitfba381d2003787a719252400487d3e6b9f2d1fdb (patch)
treefc5e00da9c3d7318ed3e168b035904edc659ee59
parentcbad38794215b77048a357948e329cb8277b6ba7 (diff)
Add details about updating diag requests.
-rw-r--r--README.md5
1 files changed, 5 insertions, 0 deletions
diff --git a/README.md b/README.md
index a10fe88b..2be7c10c 100644
--- a/README.md
+++ b/README.md
@@ -94,6 +94,11 @@ with this command format:
**frequency** - (optional, defaults to 0) The frequency in Hz to send this
request. To send a single request, set this to 0 or leave it out.
+The `bus+id+mode+pid` key is unique, so if you send a create request with that
+key twice, it'll overwrite the existing one (i.e. it will change the frequency,
+the only other parameter). To cancel a recurring request, send this command with
+the frequency set to 0.
+
TODO it'd be nice to have the OBD-II PIDs built in, with the proper conversion
functions - that may need a different output format