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Kindle: Auto-detect the input device on the PW5

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Apparently, the by-path symlink went poof
This commit is contained in:
NiLuJe
2023-10-29 23:39:29 +01:00
committed by Frans de Jonge
parent 6e08809419
commit 84e942a326
1 changed files with 24 additions and 5 deletions
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29
frontend/device/kindle/device.lua
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@@ -1234,13 +1234,32 @@ function KindlePaperWhite5:init()
Kindle.init(self)
-- Some HW/FW variants have their input device at /dev/input/by-path/platform-10019000.i2c-platform-gpio-keys.7.auto-event
if util.pathExists("/dev/input/by-path/platform-10019000.i2c-platform-gpio-keys.7.auto-event") then
self.touch_dev = "/dev/input/by-path/platform-10019000.i2c-platform-gpio-keys.7.auto-event"
else
-- Some HW/FW variants stash their input device without a by-path symlink...
if util.pathExists("/dev/input/by-path/platform-1001e000.i2c-event") then
self.touch_dev = "/dev/input/by-path/platform-1001e000.i2c-event"
self.input.open(self.touch_dev)
else
-- Walk /sys/class/input and pick up any evdev input device with EV_ABS capabilities
for evdev in lfs.dir("/sys/class/input/") do
if evdev:match("event.*") then
local abs_cap = "/sys/class/input/" .. evdev .. "/device/capabilities/abs"
local f = io.open(abs_cap, "r")
if f then
local bitmap_str = f:read("l")
if bitmap_str ~= "0" then
logger.info("Potential input device found at", evdev, "because of ABS caps:", bitmap_str)
-- Allow multiple matches, but only remember the first as touch_dev
local touch = "/dev/input/" .. evdev
self.input.open(touch)
if not self.touch_dev then
self.touch_dev = touch
end
end
f:close()
end
end
end
end
self.input.open(self.touch_dev)
self.input.open("fake_events")
end