1 files changed, 16 insertions, 0 deletions
diff --git a/nn/common/TypeUtils.cpp b/nn/common/TypeUtils.cpp
index f5bbe07f0..ad17d9444 100644
--- a/nn/common/TypeUtils.cpp
+++ b/nn/common/TypeUtils.cpp
@@ -816,6 +816,22 @@ std::ostream& operator<<(std::ostream& os, const Version& version) {
     return os << "Version{" << underlyingType(version) << "}";
 }
 
+std::ostream& operator<<(std::ostream& os, const HalVersion& halVersion) {
+    switch (halVersion) {
+        case HalVersion::UNKNOWN:
+            return os << "UNKNOWN HAL version";
+        case HalVersion::V1_0:
+            return os << "HAL version 1.0";
+        case HalVersion::V1_1:
+            return os << "HAL version 1.1";
+        case HalVersion::V1_2:
+            return os << "HAL version 1.2";
+        case HalVersion::V1_3:
+            return os << "HAL version 1.3";
+    }
+    return os << "HalVersion{" << underlyingType(halVersion) << "}";
+}
+
 bool operator==(const Timing& a, const Timing& b) {
     return a.timeOnDevice == b.timeOnDevice && a.timeInDriver == b.timeInDriver;
 }