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-rw-r--r--digital/io-hub/src/apbirthday/robot.cc2
1 files changed, 1 insertions, 1 deletions
diff --git a/digital/io-hub/src/apbirthday/robot.cc b/digital/io-hub/src/apbirthday/robot.cc
index c3d71e0a..3082df3e 100644
--- a/digital/io-hub/src/apbirthday/robot.cc
+++ b/digital/io-hub/src/apbirthday/robot.cc
@@ -264,7 +264,7 @@ Robot::proto_handle (ucoo::Proto &proto, char cmd, const uint8_t *args, int size
ucoo::bytes_pack (args[4], args[5]));
}
break;
- case c ('p', 2):
+ case c ('p', 4):
// Set potentiometer wiper.
// - 1b: wiper index.
// - 1h: wiper value.