From f6fb2ded5dd82aaa6fbe1528b6586582c42b6635 Mon Sep 17 00:00:00 2001
From: NiLuJe <ninuje@gmail.com>
Date: Tue, 20 Nov 2018 19:46:53 +0100
Subject: [PATCH] Fix frontlight sysfs path on the PW4 (#4350)

Fix toggling the FL on/off (as that's the only instance we're not using
lipc)
---
 frontend/device/kindle/device.lua | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/frontend/device/kindle/device.lua b/frontend/device/kindle/device.lua
index 742318806..39746873f 100644
--- a/frontend/device/kindle/device.lua
+++ b/frontend/device/kindle/device.lua
@@ -633,12 +633,11 @@ function KindleBasic2:init()
     self.input.open("fake_events")
 end
 
--- NOTE: FrontLight might be wrong, TBC!
 function KindlePaperWhite4:init()
     self.screen = require("ffi/framebuffer_mxcfb"):new{device = self, debug = logger.dbg}
     self.powerd = require("device/kindle/powerd"):new{
         device = self,
-        fl_intensity_file = "/sys/class/backlight/max77696-bl/brightness",
+        fl_intensity_file = "/sys/class/backlight/bl/brightness",
         batt_capacity_file = "/sys/class/power_supply/bd71827_bat/capacity",
         is_charging_file = "/sys/class/power_supply/bd71827_bat/charging",
     }