From 939a64438a91e74d4cb36883ac35a540720183a9 Mon Sep 17 00:00:00 2001
From: NiLuJe <ninuje@gmail.com>
Date: Wed, 17 Aug 2022 00:25:33 +0200
Subject: [PATCH] Input: Minor comment tweaks (#9441)

---
 frontend/device/input.lua         | 2 +-
 frontend/device/kindle/device.lua | 5 ++++-
 2 files changed, 5 insertions(+), 2 deletions(-)

diff --git a/frontend/device/input.lua b/frontend/device/input.lua
index de697506a..d36a10e67 100644
--- a/frontend/device/input.lua
+++ b/frontend/device/input.lua
@@ -225,7 +225,7 @@ end
 
 function Input:init()
     -- Initialize instance-specific tables
-    -- NOTE: Both of these arrays may be destroyed & recreated at runtime, so we don't want a parent/class object for those.
+    -- NOTE: All of these arrays may be destroyed & recreated at runtime, so we don't want a parent/class object for those.
     self.timer_callbacks = {}
     self.MTSlots = {}
     self.active_slots = {}
diff --git a/frontend/device/kindle/device.lua b/frontend/device/kindle/device.lua
index 1b4ecbaf5..e8ea9bcdf 100644
--- a/frontend/device/kindle/device.lua
+++ b/frontend/device/kindle/device.lua
@@ -989,7 +989,10 @@ function KindleBasic3:init()
 
     Kindle.init(self)
 
-    self.input.snow_protocol = true -- cf. https://github.com/koreader/koreader/issues/5070
+    -- This device doesn't emit ABS_MT_TRACKING_ID:-1 events on contact lift,
+    -- so we have to rely on contact lift detection via BTN_TOUCH:0,
+    -- c.f., https://github.com/koreader/koreader/issues/5070
+    self.input.snow_protocol = true
     self.input.open(self.touch_dev)
     self.input.open("fake_events")
 end