#define APPLE_FLAG_FKEY 0x01
 
 static struct hidinput_key_translation apple_fn_keys[] = {
+       { KEY_BACKSPACE, KEY_DELETE },
        { KEY_F1,       KEY_BRIGHTNESSDOWN,     APPLE_FLAG_FKEY },
        { KEY_F2,       KEY_BRIGHTNESSUP,       APPLE_FLAG_FKEY },
        { KEY_F3,       KEY_CYCLEWINDOWS,       APPLE_FLAG_FKEY }, /* Exposé */
        { KEY_F10,      KEY_MUTE,               APPLE_FLAG_FKEY },
        { KEY_F11,      KEY_VOLUMEDOWN,         APPLE_FLAG_FKEY },
        { KEY_F12,      KEY_VOLUMEUP,           APPLE_FLAG_FKEY },
+       { KEY_UP,       KEY_PAGEUP },
+       { KEY_DOWN,     KEY_PAGEDOWN },
+       { KEY_LEFT,     KEY_HOME },
+       { KEY_RIGHT,    KEY_END },
        { }
 };
 
 
 #define USB_DEVICE_ID_APPLE_ALU_ANSI   0x0220
 #define USB_DEVICE_ID_APPLE_ALU_ISO    0x0221
 #define USB_DEVICE_ID_APPLE_ALU_JIS    0x0222
+#define USB_DEVICE_ID_APPLE_GEYSER4_HF_ANSI    0x0229
+#define USB_DEVICE_ID_APPLE_GEYSER4_HF_ISO     0x022a
+#define USB_DEVICE_ID_APPLE_GEYSER4_HF_JIS     0x022b
+#define USB_DEVICE_ID_APPLE_ALU_WIRELESS_ANSI  0x022c
+#define USB_DEVICE_ID_APPLE_ALU_WIRELESS_ISO   0x022d
+#define USB_DEVICE_ID_APPLE_ALU_WIRELESS_JIS   0x022e
 #define USB_DEVICE_ID_APPLE_FOUNTAIN_TP_ONLY   0x030a
 #define USB_DEVICE_ID_APPLE_GEYSER1_TP_ONLY    0x030b
 #define USB_DEVICE_ID_APPLE_IRCONTROL4 0x8242
        { USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_ANSI, HID_QUIRK_APPLE_HAS_FN },
        { USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_ISO, HID_QUIRK_APPLE_HAS_FN | HID_QUIRK_APPLE_ISO_KEYBOARD },
        { USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_JIS, HID_QUIRK_APPLE_HAS_FN },
+       { USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_ANSI, HID_QUIRK_APPLE_HAS_FN | HID_QUIRK_IGNORE_MOUSE },
+       { USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_ISO, HID_QUIRK_APPLE_HAS_FN | HID_QUIRK_IGNORE_MOUSE | HID_QUIRK_APPLE_ISO_KEYBOARD },
+       { USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_JIS, HID_QUIRK_APPLE_HAS_FN | HID_QUIRK_IGNORE_MOUSE },
+       { USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_ANSI, HID_QUIRK_APPLE_HAS_FN },
+       { USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_ISO, HID_QUIRK_APPLE_HAS_FN | HID_QUIRK_APPLE_ISO_KEYBOARD },
+       { USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_JIS, HID_QUIRK_APPLE_HAS_FN },
        { USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_TP_ONLY, HID_QUIRK_APPLE_HAS_FN | HID_QUIRK_IGNORE_MOUSE },
        { USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER1_TP_ONLY, HID_QUIRK_APPLE_HAS_FN | HID_QUIRK_IGNORE_MOUSE },