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-rw-r--r--proto/puzbusv1.proto4
1 files changed, 2 insertions, 2 deletions
diff --git a/proto/puzbusv1.proto b/proto/puzbusv1.proto
index 6b4fa52..2358135 100644
--- a/proto/puzbusv1.proto
+++ b/proto/puzbusv1.proto
@@ -1,11 +1,11 @@
-syntax = "proto2";
+syntax = "proto3";
package puzbus;
message I2CMsg {
// 32-bit is the smallest integer format supported by protobuf, even though
// we only need 7-10 bits for the I2C address.
- required uint32 address = 1;
+ uint32 address = 1;
optional bytes data = 2;
}