trs80: add tty_sleeping

diff --git a/Kernel/platform-trs80/devtty.c b/Kernel/platform-trs80/devtty.c
index 1746c1d..6eaa858 100644 (file)
--- a/Kernel/platform-trs80/devtty.c
+++ b/Kernel/platform-trs80/devtty.c
@@ -104,6 +104,10 @@ int tty_carrier(uint8_t minor)
     return 0;
 }
 
+void tty_sleeping(uint8_t minor)
+{
+        used(minor);
+}
 
 uint8_t keymap[8];
 static uint8_t keyin[8];