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-rw-r--r--n/avr/proto/proto.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/n/avr/proto/proto.h b/n/avr/proto/proto.h
index 5d6319f..c52bb35 100644
--- a/n/avr/proto/proto.h
+++ b/n/avr/proto/proto.h
@@ -42,6 +42,10 @@ proto_putc (uint8_t c);
void
proto_accept (uint8_t c);
+/* Send a argument byte. */
+void
+proto_arg (uint8_t a);
+
/** Send a command, generic function. */
void
proto_send (uint8_t cmd, uint8_t size, uint8_t *args);