From d02789ce21a183682f968cc95dcd88c98efba0f0 Mon Sep 17 00:00:00 2001
From: Romain Vimont <rom@rom1v.com>
Date: Sun, 16 Aug 2020 13:52:01 +0200
Subject: [PATCH] List available shortcut keys on error

Fixes #1681 <https://github.com/Genymobile/scrcpy/issues/1681>

Suggested-by: Moritz Schulz <moritzleni@gmail.com>
---
 app/src/cli.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/app/src/cli.c b/app/src/cli.c
index df84f6f5..9c791fbf 100644
--- a/app/src/cli.c
+++ b/app/src/cli.c
@@ -532,7 +532,9 @@ parse_shortcut_mods_item(const char *item, size_t len) {
         } else if (STREQ("rsuper", item, key_len)) {
             mod |= SC_MOD_RSUPER;
         } else {
-            LOGW("Unknown modifier key: %.*s", (int) key_len, item);
+            LOGE("Unknown modifier key: %.*s "
+                 "(must be one of: lctrl, rctrl, lalt, ralt, lsuper, rsuper)",
+                 (int) key_len, item);
             return 0;
         }
 #undef STREQ