как узнать какие сканкоды свободны

atkbd.c: Unknown key pressed (translated set 2, code 0x94 on isa0060/serio0).
atkbd.c: Use 'setkeycodes e014 <keycode>' to make it known.
atkbd.c: Unknown key released (translated set 2, code 0x94 on isa0060/serio0).
atkbd.c: Use 'setkeycodes e014 <keycode>' to make it known.
atkbd.c: Unknown key pressed (translated set 2, code 0x93 on isa0060/serio0).
atkbd.c: Use 'setkeycodes e013 <keycode>' to make it known.
atkbd.c: Unknown key released (translated set 2, code 0x93 on isa0060/serio0).
atkbd.c: Use 'setkeycodes e013 <keycode>' to make it known.
atkbd.c: Unknown key pressed (translated set 2, code 0x95 on isa0060/serio0).
atkbd.c: Use 'setkeycodes e015 <keycode>' to make it known.
atkbd.c: Unknown key released (translated set 2, code 0x95 on isa0060/serio0).
atkbd.c: Use 'setkeycodes e015 <keycode>' to make it known.
atkbd.c: Unknown key pressed (translated set 2, code 0xd5 on isa0060/serio0).
atkbd.c: Use 'setkeycodes e055 <keycode>' to make it known.
atkbd.c: Unknown key released (translated set 2, code 0xd5 on isa0060/serio0).
atkbd.c: Use 'setkeycodes e055 <keycode>' to make it known.
atkbd.c: Unknown key pressed (translated set 2, code 0xb1 on isa0060/serio0).
atkbd.c: Use 'setkeycodes e031 <keycode>' to make it known.
atkbd.c: Unknown key released (translated set 2, code 0xb1 on isa0060/serio0).
atkbd.c: Use 'setkeycodes e031 <keycode>' to make it known.
atkbd.c: Unknown key pressed (translated set 2, code 0xf8 on isa0060/serio0).
atkbd.c: Use 'setkeycodes e078 <keycode>' to make it known.
atkbd.c: Unknown key released (translated set 2, code 0xf8 on isa0060/serio0).
atkbd.c: Use 'setkeycodes e078 <keycode>' to make it known.
atkbd.c: Unknown key pressed (translated set 2, code 0xad on isa0060/serio0).
atkbd.c: Use 'setkeycodes e02d <keycode>' to make it known.
atkbd.c: Unknown key released (translated set 2, code 0xad on isa0060/serio0).
atkbd.c: Use 'setkeycodes e02d <keycode>' to make it known.
atkbd.c: Unknown key pressed (translated set 2, code 0xaf on isa0060/serio0).
atkbd.c: Use 'setkeycodes e02f <keycode>' to make it known.
atkbd.c: Unknown key released (translated set 2, code 0xaf on isa0060/serio0).
atkbd.c: Use 'setkeycodes e02f <keycode>' to make it known.
atkbd.c: Unknown key pressed (translated set 2, code 0x91 on isa0060/serio0).
atkbd.c: Use 'setkeycodes e011 <keycode>' to make it known.
atkbd.c: Unknown key released (translated set 2, code 0x91 on isa0060/serio0).
atkbd.c: Use 'setkeycodes e011 <keycode>' to make it known.
atkbd.c: Unknown key pressed (translated set 2, code 0xf5 on isa0060/serio0).
atkbd.c: Use 'setkeycodes e075 <keycode>' to make it known.
atkbd.c: Unknown key released (translated set 2, code 0xf5 on isa0060/serio0).
atkbd.c: Use 'setkeycodes e075 <keycode>' to make it known.
atkbd.c: Unknown key pressed (translated set 2, code 0xf4 on isa0060/serio0).
atkbd.c: Use 'setkeycodes e074 <keycode>' to make it known.
atkbd.c: Unknown key released (translated set 2, code 0xf4 on isa0060/serio0).
atkbd.c: Use 'setkeycodes e074 <keycode>' to make it known.
atkbd.c: Unknown key pressed (translated set 2, code 0xbb on isa0060/serio0).
atkbd.c: Use 'setkeycodes e03b <keycode>' to make it known.
atkbd.c: Unknown key released (translated set 2, code 0xbb on isa0060/serio0).
atkbd.c: Use 'setkeycodes e03b <keycode>' to make it known.
atkbd.c: Unknown key pressed (translated set 2, code 0xbc on isa0060/serio0).
atkbd.c: Use 'setkeycodes e03c <keycode>' to make it known.
atkbd.c: Unknown key released (translated set 2, code 0xbc on isa0060/serio0).
atkbd.c: Use 'setkeycodes e03c <keycode>' to make it known.
atkbd.c: Unknown key pressed (translated set 2, code 0xbd on isa0060/serio0).
atkbd.c: Use 'setkeycodes e03d <keycode>' to make it known.
atkbd.c: Unknown key released (translated set 2, code 0xbd on isa0060/serio0).
atkbd.c: Use 'setkeycodes e03d <keycode>' to make it known.
atkbd.c: Unknown key pressed (translated set 2, code 0xbe on isa0060/serio0).
atkbd.c: Use 'setkeycodes e03e <keycode>' to make it known.
atkbd.c: Unknown key released (translated set 2, code 0xbe on isa0060/serio0).
atkbd.c: Use 'setkeycodes e03e <keycode>' to make it known.
atkbd.c: Unknown key pressed (translated set 2, code 0xbf on isa0060/serio0).
atkbd.c: Use 'setkeycodes e03f <keycode>' to make it known.
atkbd.c: Unknown key released (translated set 2, code 0xbf on isa0060/serio0).
atkbd.c: Use 'setkeycodes e03f <keycode>' to make it known.
atkbd.c: Unknown key pressed (translated set 2, code 0xc0 on isa0060/serio0).
atkbd.c: Use 'setkeycodes e040 <keycode>' to make it known.
atkbd.c: Unknown key released (translated set 2, code 0xc0 on isa0060/serio0).
atkbd.c: Use 'setkeycodes e040 <keycode>' to make it known.
atkbd.c: Unknown key pressed (translated set 2, code 0xc1 on isa0060/serio0).
atkbd.c: Use 'setkeycodes e041 <keycode>' to make it known.
atkbd.c: Unknown key released (translated set 2, code 0xc1 on isa0060/serio0).
atkbd.c: Use 'setkeycodes e041 <keycode>' to make it known.
atkbd.c: Unknown key pressed (translated set 2, code 0xc2 on isa0060/serio0).
atkbd.c: Use 'setkeycodes e042 <keycode>' to make it known.
atkbd.c: Unknown key released (translated set 2, code 0xc2 on isa0060/serio0).
atkbd.c: Use 'setkeycodes e042 <keycode>' to make it known.
atkbd.c: Unknown key pressed (translated set 2, code 0xc3 on isa0060/serio0).
atkbd.c: Use 'setkeycodes e043 <keycode>' to make it known.
atkbd.c: Unknown key released (translated set 2, code 0xc3 on isa0060/serio0).
atkbd.c: Use 'setkeycodes e043 <keycode>' to make it known.
atkbd.c: Unknown key pressed (translated set 2, code 0xc4 on isa0060/serio0).
atkbd.c: Use 'setkeycodes e044 <keycode>' to make it known.
atkbd.c: Unknown key released (translated set 2, code 0xc4 on isa0060/serio0).
atkbd.c: Use 'setkeycodes e044 <keycode>' to make it known.
atkbd.c: Unknown key pressed (translated set 2, code 0xd7 on isa0060/serio0).
atkbd.c: Use 'setkeycodes e057 <keycode>' to make it known.
atkbd.c: Unknown key released (translated set 2, code 0xd7 on isa0060/serio0).
atkbd.c: Use 'setkeycodes e057 <keycode>' to make it known.
atkbd.c: Unknown key pressed (translated set 2, code 0xd8 on isa0060/serio0).
atkbd.c: Use 'setkeycodes e058 <keycode>' to make it known.
atkbd.c: Unknown key released (translated set 2, code 0xd8 on isa0060/serio0).
atkbd.c: Use 'setkeycodes e058 <keycode>' to make it known.

Вот наконец получилось увидеть мультимедия кнопки которые не были 
видны в xev увиделя я их в dmesg. Остался только один вопрос, как 
узнать какие сканкоды свободны, т.е. на какие можно повесить 
опознанные кнопки?!

Заранее спасибо!!!