feat: return .ctype from evdev.libevdev

Author: MunifTanjim

evdev/device.lua

@@ -12,8 +12,6 @@ local libevdev_grab_mode = evdev_enum.libevdev_grab_mode
 local libevdev_read_flag = evdev_enum.libevdev_read_flag
 local open_flag = util.enum.open_flag
 
-local new_libevdev_ptr = ffi.typeof("struct libevdev *[1]")
-
 ---@class Device
 ---@field fd number
 ---@field pathname string
@@ -36,7 +34,7 @@ local function init(class, pathname, flags)
 
   self.fd = fd
 
-  local dev_ptr = new_libevdev_ptr()
+  local dev_ptr = libevdev.ctype.libevdev_ptr()
 
   local rc = evdev.libevdev_new_from_fd(fd, dev_ptr)
   if rc < 0 then

evdev/libevdev.lua

@@ -279,7 +279,12 @@ enum.libevdev_led_value = {
 ---@field libevdev_get_repeat                  fun(dev: ffi.cdata*, delay: ffi.cdata*, period: ffi.cdata*): number
 local libevdev = ffi.load("evdev")
 
+local ctype = {
+  libevdev_ptr = ffi.typeof("struct libevdev *[1]"),
+}
+
 local mod = {
+  ctype = ctype,
   enum = enum,
   lib = libevdev,
 }