1 files changed, 9 insertions, 4 deletions
diff --git a/src/user/knob/user.c b/src/user/knob/user.c
index b642f79..dfcb791 100644
--- a/src/user/knob/user.c
+++ b/src/user/knob/user.c
@@ -116,10 +116,8 @@ static const uint8_t shifted[] = {
   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
 };
 
-static char get_key_char() {
-  _key_code_t key;
-  while (!(key = _get_key()))
-    _yield_task();
+__attribute__ ((const))
+char key_to_char(_key_code_t key) {
   return
     key & _KEY_CAPS
     ? key & _KEY_SHIFT
@@ -130,6 +128,13 @@ static char get_key_char() {
       : key & 0xff;
 }
 
+static char get_key_char() {
+  _key_code_t key;
+  while (!(key = _get_key()))
+    _yield_task();
+  return key_to_char(key);
+}
+
 void tell_user_sz(const char *sz) {
   _log_string(sz);
 }