diff --git a/lib/logitech_receiver/special_keys.py b/lib/logitech_receiver/special_keys.py
index 5f0bdbb6..dbfa9e3e 100644
--- a/lib/logitech_receiver/special_keys.py
+++ b/lib/logitech_receiver/special_keys.py
@@ -19,6 +19,7 @@
 # Reprogrammable keys information
 # Mostly from Logitech documentation, but with some edits for better Lunix compatability
 
+from .common import NamedInt as _NamedInt
 from .common import NamedInts as _NamedInts
 
 # <controls.xml awk -F\" '/<Control /{sub(/^LD_FINFO_(CTRLID_)?/, "", $2);printf("\t%s=0x%04X,\n", $2, $4)}' | sort -t= -k2
@@ -595,3 +596,224 @@ DISABLE = _NamedInts(
     Win=0x10,  # aka Super
 )
 DISABLE._fallback = lambda x: 'unknown:%02X' % x
+
+##
+## Information for x1c00 Persistent from https://drive.google.com/drive/folders/0BxbRzx7vEV7eWmgwazJ3NUFfQ28
+##
+
+KEYMOD = _NamedInts(CTRL=0x01, SHIFT=0x02, ALT=0x04, META=0x08, RCTRL=0x10, RSHIFT=0x20, RALT=0x40, RMETA=0x80)
+
+ACTIONID = _NamedInts(
+    Empty=0x00,
+    Key=0x01,
+    Mouse=0x02,
+    Xdisp=0x03,
+    Ydisp=0x04,
+    Vscroll=0x05,
+    Hscroll=0x06,
+    Control=0x07,
+    Internal=0x08,
+    Power=0x09
+)
+
+MOUSE_BUTTONS = _NamedInts(
+    Left=0x01,
+    Right=0x02,
+    Middle=0x04,
+    Back=0x08,
+    Forward=0x10,
+)
+MOUSE_BUTTONS._fallback = lambda x: 'unknown:%02X' % x
+
+# HID USB Keycodes from https://www.usb.org/sites/default/files/documents/hut1_12v2.pdf
+USB_HID_KEYCODES = _NamedInts(
+    NONE=0x00,
+    ERR_OVF=0x01,
+    A=0x04,
+    B=0x05,
+    C=0x06,
+    D=0x07,
+    E=0x08,
+    F=0x09,
+    G=0x0a,
+    H=0x0b,
+    I=0x0c,
+    J=0x0d,
+    K=0x0e,
+    L=0x0f,
+    M=0x10,
+    N=0x11,
+    O=0x12,
+    P=0x13,
+    Q=0x14,
+    R=0x15,
+    S=0x16,
+    T=0x17,
+    U=0x18,
+    V=0x19,
+    W=0x1a,
+    X=0x1b,
+    Y=0x1c,
+    Z=0x1d,
+    ENTER=0x28,
+    ESC=0x29,
+    BACKSPACE=0x2a,
+    TAB=0x2b,
+    SPACE=0x2c,
+    MINUS=0x2d,
+    EQUAL=0x2e,
+    LEFTBRACE=0x2f,
+    RIGHTBRACE=0x30,
+    BACKSLASH=0x31,
+    HASHTILDE=0x32,
+    SEMICOLON=0x33,
+    APOSTROPHE=0x34,
+    GRAVE=0x35,
+    COMMA=0x36,
+    DOT=0x37,
+    SLASH=0x38,
+    CAPSLOCK=0x39,
+    F1=0x3a,
+    F2=0x3b,
+    F3=0x3c,
+    F4=0x3d,
+    F5=0x3e,
+    F6=0x3f,
+    F7=0x40,
+    F8=0x41,
+    F9=0x42,
+    F10=0x43,
+    F11=0x44,
+    F12=0x45,
+    SYSRQ=0x46,
+    SCROLLLOCK=0x47,
+    PAUSE=0x48,
+    INSERT=0x49,
+    HOME=0x4a,
+    PAGEUP=0x4b,
+    DELETE=0x4c,
+    END=0x4d,
+    PAGEDOWN=0x4e,
+    RIGHT=0x4f,
+    LEFT=0x50,
+    DOWN=0x51,
+    UP=0x52,
+    NUMLOCK=0x53,
+    KPSLASH=0x54,
+    KPASTERISK=0x55,
+    KPMINUS=0x56,
+    KPPLUS=0x57,
+    KPENTER=0x58,
+    KP1=0x59,
+    KP2=0x5a,
+    KP3=0x5b,
+    KP4=0x5c,
+    KP5=0x5d,
+    KP6=0x5e,
+    KP7=0x5f,
+    KP8=0x60,
+    KP9=0x61,
+    KP0=0x62,
+    KPDOT=0x63,
+    COMPOSE=0x65,
+    POWER=0x66,
+    KPEQUAL=0x67,
+    F13=0x68,
+    F14=0x69,
+    F15=0x6a,
+    F16=0x6b,
+    F17=0x6c,
+    F18=0x6d,
+    F19=0x6e,
+    F20=0x6f,
+    F21=0x70,
+    F22=0x71,
+    F23=0x72,
+    F24=0x73,
+    OPEN=0x74,
+    HELP=0x75,
+    PROPS=0x76,
+    FRONT=0x77,
+    STOP=0x78,
+    AGAIN=0x79,
+    UNDO=0x7a,
+    CUT=0x7b,
+    COPY=0x7c,
+    PASTE=0x7d,
+    FIND=0x7e,
+    MUTE=0x7f,
+    VOLUMEUP=0x80,
+    VOLUMEDOWN=0x81,
+    KPCOMMA=0x85,
+    RO=0x87,
+    KATAKANAHIRAGANA=0x88,
+    YEN=0x89,
+    HENKAN=0x8a,
+    MUHENKAN=0x8b,
+    KPJPCOMMA=0x8c,
+    HANGEUL=0x90,
+    HANJA=0x91,
+    KATAKANA=0x92,
+    HIRAGANA=0x93,
+    ZENKAKUHANKAKU=0x94,
+    KPLEFTPAREN=0xb6,
+    KPRIGHTPAREN=0xb7,
+    LEFTCTRL=0xe0,
+    LEFTSHIFT=0xe1,
+    LEFTALT=0xe2,
+    LEFTWINDOWS=0xe3,
+    RIGHTCTRL=0xe4,
+    RIGHTSHIFT=0xe5,
+    RIGHTALT=0xe6,
+    RIGHTMETA=0xe7,
+    MEDIA_PLAYPAUSE=0xe8,
+    MEDIA_STOPCD=0xe9,
+    MEDIA_PREVIOUSSONG=0xea,
+    MEDIA_NEXTSONG=0xeb,
+    MEDIA_EJECTCD=0xec,
+    MEDIA_VOLUMEUP=0xed,
+    MEDIA_VOLUMEDOWN=0xee,
+    MEDIA_MUTE=0xef,
+    MEDIA_WWW=0xf0,
+    MEDIA_BACK=0xf1,
+    MEDIA_FORWARD=0xf2,
+    MEDIA_STOP=0xf3,
+    MEDIA_FIND=0xf4,
+    MEDIA_SCROLLUP=0xf5,
+    MEDIA_SCROLLDOWN=0xf6,
+    MEDIA_EDIT=0xf7,
+    MEDIA_SLEEP=0xf8,
+    MEDIA_COFFEE=0xf9,
+    MEDIA_REFRESH=0xfa,
+    MEDIA_CALC=0xfb,
+)
+USB_HID_KEYCODES[0x1e] = '1'
+USB_HID_KEYCODES[0x1f] = '2'
+USB_HID_KEYCODES[0x20] = '3'
+USB_HID_KEYCODES[0x21] = '4'
+USB_HID_KEYCODES[0x22] = '5'
+USB_HID_KEYCODES[0x23] = '6'
+USB_HID_KEYCODES[0x24] = '7'
+USB_HID_KEYCODES[0x25] = '8'
+USB_HID_KEYCODES[0x26] = '9'
+USB_HID_KEYCODES[0x27] = '0'
+USB_HID_KEYCODES[0x64] = '102ND'
+
+# Construct keys plus modifiers
+modifiers = {
+    0x0: '',
+    0x1: 'Cntrl+',
+    0x2: 'Shift+',
+    0x4: 'Alt+',
+    0x8: 'Meta+',
+    0x3: 'Cntrl+Shift+',
+    0x5: 'Cntrl+Alt+',
+    0x9: 'Cntrl+Meta+',
+    0x6: 'Shift+Alt+',
+    0xA: 'Shift+Meta+',
+    0xC: 'Alt+Meta+'
+}
+KEYS = []
+for val, name in modifiers.items():
+    for key in USB_HID_KEYCODES:
+        KEYS.append(_NamedInt((int(key) << 8) + val, name + str(key)))