參考資訊:
https://leste.maemo.org/Motorola_Droid_4
預設按鍵
/usr/share/X11/xkb/symbols/us
xkb_symbols "basic" { name[Group1]= "English (US)"; key <TLDE> { [ grave, asciitilde ] }; key <AE01> { [ 1, exclam, bar ] }; key <AE02> { [ 2, at ] }; key <AE03> { [ 3, numbersign ] }; key <AE04> { [ 4, dollar ] }; key <AE05> { [ 5, percent ] }; key <AE06> { [ 6, asciicircum ] }; key <AE07> { [ 7, ampersand ] }; key <AE08> { [ 8, asterisk ] }; key <AE09> { [ 9, parenleft, less ] }; key <AE10> { [ 0, parenright, greater ] }; key <AE11> { [ minus, underscore, asciitilde ] }; key <AE12> { [ equal, plus ] }; key <AD01> { [ q, Q ] }; key <AD02> { [ w, W ] }; key <AD03> { [ e, E ] }; key <AD04> { [ r, R ] }; key <AD05> { [ t, T ] }; key <AD06> { [ y, Y ] }; key <AD07> { [ u, U ] }; key <AD08> { [ i, I ] }; key <AD09> { [ o, O, bracketleft ] }; key <AD10> { [ p, P, bracketright] }; key <AD11> { [ bracketleft, braceleft ] }; key <AD12> { [ bracketright, braceright ] }; key <AC01> { [ a, A ] }; key <AC02> { [ s, S ] }; key <AC03> { [ d, D ] }; key <AC04> { [ f, F ] }; key <AC05> { [ g, G ] }; key <AC06> { [ h, H ] }; key <AC07> { [ j, J ] }; key <AC08> { [ k, K, braceleft ] }; key <AC09> { [ l, L, braceright ] }; key <AC10> { [ semicolon, colon ] }; key <AC11> { [ apostrophe, quotedbl, grave ] }; key <AB01> { [ z, Z ] }; key <AB02> { [ x, X ] }; key <AB03> { [ c, C ] }; key <AB04> { [ v, V ] }; key <AB05> { [ b, B ] }; key <AB06> { [ n, N ] }; key <AB07> { [ m, M ] }; key <AB08> { [ comma, semicolon ] }; key <AB09> { [ period, colon ] }; key <AB10> { [ slash, question, backslash ] }; key <BKSL> { [ backslash, bar ] }; include "level3(lalt_switch)" };