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-rw-r--r--include/ptycon/ptycon.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/ptycon/ptycon.h b/include/ptycon/ptycon.h
index d878d73..19c2513 100644
--- a/include/ptycon/ptycon.h
+++ b/include/ptycon/ptycon.h
@@ -40,6 +40,7 @@ extern "C" {
#define PTYC_DRIVER_CLONE_VECTOR 0x0008
#define PTYC_DRIVER_VERSION 0x0010
+#define PTYC_DRIVER_BELL 0x0020
#define PTYC_DRIVER_DBG_EVENT 0x0100
#define PTYC_DRIVER_DBG_OVEN 0x0200
#define PTYC_DRIVER_DBG_RAW 0x0400