Add flag to mark key usage code as a fallback mapping

We don't yet have a way to determine if a device can actually report a
usage code. Adding a flag to mark usage code as fallback only mapping.

Bug: 297094448
Test: atest inputflinger_tests
Change-Id: I137113d0dc9a1c8abf523b96942486be176d0240

1 files changed, 1 insertions, 1 deletions

diff --git a/libs/input/KeyLayoutMap.cpp b/libs/input/KeyLayoutMap.cpp
index ddc9ea457e..3c1ae3e41b 100644
--- a/libs/input/KeyLayoutMap.cpp
+++ b/libs/input/KeyLayoutMap.cpp
@@ -250,7 +250,7 @@ std::vector<int32_t> KeyLayoutMap::findScanCodesForKey(int32_t keyCode) const {
 std::vector<int32_t> KeyLayoutMap::findUsageCodesForKey(int32_t keyCode) const {
     std::vector<int32_t> usageCodes;
     for (const auto& [usageCode, key] : mKeysByUsageCode) {
-        if (keyCode == key.keyCode) {
+        if (keyCode == key.keyCode && !(key.flags & POLICY_FLAG_FALLBACK_USAGE_MAPPING)) {
             usageCodes.push_back(usageCode);
         }
     }