Deal with this nonsense while I'm in there...

frontend/device/input.lua

@@ -352,8 +352,7 @@ end
 
 -- Wrappers for the custom FFI implementations with no concept of paths or fd
 if input.is_ffi then
-    -- None of the current implementations actually *take* any arguments...
-    -- (Or they think they do, but they don't... Lookin' at you, PB).
+    -- Pass args as-is. None of 'em actually *take* arguments, but some may be invoked as methods...
     function Input.open(...)
         return input.open(...)
     end

frontend/device/pocketbook/device.lua

@@ -57,8 +57,6 @@ local PocketBook = Generic:extend{
         keymap = { [scan] = event },
     }]]
     -- Runtime state: whether raw input is actually used
-    --- @fixme: Never actually set anywhere?
-    is_using_raw_input = nil,
 
     -- InkView may have started translating button codes based on rotation on newer devices...
     -- That historically wasn't the case, hence this defaulting to false.
@@ -242,8 +240,7 @@ function PocketBook:init()
     -- NOTE: This all happens in ffi/input_pocketbook.lua
 
     self._model_init()
-    --- @fixme: ffi/input_pocketbook's open implementation doesn't actually take any argument, it pokes at self.raw_input via self instead...
-    if (not self.input.raw_input) or (not pcall(self.input.open, self.input, self.raw_input)) then
+    if (not self.input.raw_input) or (not pcall(self.input.open, self.input)) then
         inkview.OpenScreen()
         -- Raw mode open failed (no permissions?), so we'll run the usual way.
         -- Disable touch coordinate translation as inkview will do that.