evtest foot pedal

# hwdb configs I've tried:
keyboard:usb:v05f3p00ff*
 KEYBOARD_KEY_90001=enter
 KEYBOARD_KEY_90003=0
 KEYBOARD_KEY_90002=b

evdev:input:v05f3p00ff*
 KEYBOARD_KEY_90001=enter
 KEYBOARD_KEY_90003=0
 KEYBOARD_KEY_90002=b

# I've tried this device id to:
evdev:input:b*v05f3p00ffe*-*

evtest shows the following:
**********
root@mvw-lappy:/lib/udev/hwdb.d# evtest /dev/input/event5
Input driver version is 1.0.1
Input device ID: bus 0x3 vendor 0x5f3 product 0xff version 0x100
Input device name: "VEC  VEC USB Footpedal"
Supported events:
  Event type 0 (EV_SYN)
  Event type 1 (EV_KEY)
    Event code 256 (BTN_0)
    Event code 257 (BTN_1)
    Event code 258 (BTN_2)
  Event type 4 (EV_MSC)
    Event code 4 (MSC_SCAN)
Properties:
Testing ... (interrupt to exit)
Event: time 1489800794.418386, type 4 (EV_MSC), code 4 (MSC_SCAN), value 90001
Event: time 1489800794.418386, type 1 (EV_KEY), code 256 (BTN_0), value 1
Event: time 1489800794.418386, -------------- SYN_REPORT ------------
Event: time 1489800794.562408, type 4 (EV_MSC), code 4 (MSC_SCAN), value 90001
Event: time 1489800794.562408, type 1 (EV_KEY), code 256 (BTN_0), value 0
Event: time 1489800794.562408, -------------- SYN_REPORT ------------
Event: time 1489800795.546404, type 4 (EV_MSC), code 4 (MSC_SCAN), value 90002
Event: time 1489800795.546404, type 1 (EV_KEY), code 257 (BTN_1), value 1
Event: time 1489800795.546404, -------------- SYN_REPORT ------------
Event: time 1489800795.666404, type 4 (EV_MSC), code 4 (MSC_SCAN), value 90002
Event: time 1489800795.666404, type 1 (EV_KEY), code 257 (BTN_1), value 0
Event: time 1489800795.666404, -------------- SYN_REPORT ------------
Event: time 1489800797.018392, type 4 (EV_MSC), code 4 (MSC_SCAN), value 90003
Event: time 1489800797.018392, type 1 (EV_KEY), code 258 (BTN_2), value 1
Event: time 1489800797.018392, -------------- SYN_REPORT ------------
Event: time 1489800797.114391, type 4 (EV_MSC), code 4 (MSC_SCAN), value 90003
Event: time 1489800797.114391, type 1 (EV_KEY), code 258 (BTN_2), value 0
Event: time 1489800797.114391, -------------- SYN_REPORT ------------
************

# guides
* http://h6o6.com/2013/03/configure-a-usb-foot-pedal-on-linux/
* http://compsoc.man.ac.uk/~shep/pedals.html