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-rw-r--r--digital/io/src/main.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/digital/io/src/main.c b/digital/io/src/main.c
index fdd98355..e1b7ebbc 100644
--- a/digital/io/src/main.c
+++ b/digital/io/src/main.c
@@ -398,6 +398,11 @@ proto_callback (uint8_t cmd, uint8_t size, uint8_t *args)
proto_send1b ('S', switch_get_color () << 1 | switch_get_jack ());
break;
+ case c ('C', 0):
+ /* Report contacts states. */
+ proto_send1b ('C', PINC);
+ break;
+
case c ('M', 1):
/* Main stats timer.
* - 1b: 1 to enable, 0 to disable.