From 045c94dda71bd0f20f37ca4009d05fc1dc1d3ec2 Mon Sep 17 00:00:00 2001
From: John Zhao <johnzhao@slightech.com>
Date: Fri, 20 Apr 2018 12:45:40 +0800
Subject: [PATCH] Log message if get device info failed

---
 src/internal/channels.cc | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/internal/channels.cc b/src/internal/channels.cc
index c1a9249..51e8f74 100644
--- a/src/internal/channels.cc
+++ b/src/internal/channels.cc
@@ -550,7 +550,9 @@ bool Channels::GetFiles(
       i += 3;
       switch (file_id) {
         case FID_DEVICE_INFO: {
-          CHECK_EQ(from_data(info, data + i), file_size);
+          CHECK_EQ(from_data(info, data + i), file_size)
+              << "The firmware not support getting device info, you could "
+                 "upgrade to latest";
           spec_ver = &info->spec_version;
           CheckSpecVersion(spec_ver);
         } break;