HP USB MCE not working

That receiver works fine on my chromebox USB3. Guide to Lirc IR Blasting - OpenELEC

My Lircd.conf
# Please make this file available to others
# by sending it to <lirc@bartelmus.de>
#
# this config file was automatically generated
# using lirc-0.9.1-git(default) on Wed Apr 22 16:14:39 2015
#
# contributed by
#
# brand: /storage/.config/lircd.conf
# model no. of remote control:
# devices being controlled by this remote:
#

begin remote

name /storage/.config/lircd.conf
bits 13
flags RC5
eps 30
aeps 100

one 910 882
zero 910 882
plead 909
gap 11000
toggle_bit_mask 0x800

begin codes
KEY_UP 0x0290
KEY_DOWN 0x0291
KEY_LEFT 0x0295
KEY_RIGHT 0x0296
KEY_EXIT 0x12A2
KEY_OK 0x0297
KEY_INFO 0x12AF
KEY_RED 0x02AB
KEY_GREEN 0x02AC
KEY_BLUE 0x02AE
KEY_YELLOW 0x02AD
KEY_NUMERIC_1 0x1281
KEY_NUMERIC_2 0x1282
KEY_NUMERIC_3 0x1283
KEY_NUMERIC_4 0x1284
KEY_NUMERIC_5 0x1285
KEY_NUMERIC_6 0x1286
KEY_NUMERIC_7 0x1287
KEY_NUMERIC_8 0x1288
KEY_NUMERIC_9 0x1289
KEY_NUMERIC_0 0x1280
KEY_STOP 0x12B6
KEY_PAUSE 0x1293
KEY_PLAY 0x12B0
KEY_RECORD 0x12B7
KEY_TITLE 0x0292
KEY_PVR 0x1295
KEY_TV 0x0A93
KEY_SUBTITLE 0x129A
KEY_TEXT 0x0AAA 0x02AA
KEY_EPG 0x1298
KEY_DELETE 0x1A99
KEY_FASTFORWARD 0x12B4
KEY_REWIND 0x12B2
KEY_LAST 0x1294
KEY_CHANNELUP 0x12A0
KEY_CHANNELDOWN 0x12A1
KEY_NEXT 0x12AB
KEY_PREVIOUS 0x12AA
KEY_POWER 0x128C
KEY_HOME 0x028F
end codes

end remote

My remote.conf
################################################################################
# This file is part of OpenELEC - OpenELEC Mediacenter - Home
# Copyright (C) 2009-2014 Stephan Raue (stephan@openelec.tv)
#
# OpenELEC is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 2 of the License, or
# (at your option) any later version.
#
# OpenELEC is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with OpenELEC. If not, see <Licenses - GNU Project - Free Software Foundation>.
################################################################################
# remote.conf

# This configuration file lets you setup remote control access for your
# system
# Options are "none" / "lirc" / "irtrans"

# none: No remote control hardware is installed
# lirc: Use lirc as remote control backend (default)
# irtrans: Use irtrans as remote control backend

REMOTE_BACKEND="lirc"

My autostart.sh

ir-keytable -p LIRC

Then use the Add-on:Keymap Editor - Official Kodi Wiki

Should get you up and running, I used that to map a tivo remote to libreelec, with that same receiver as you.