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14. USB

The USB specification prescribes 16-bit keycodes for keyboard positions, identified with key captions for the usual US layout. Below the values are given in decimal. 0-3 are protocol values, namely NoEvent, ErrorRollOver, POSTFail, ErrorUndefined, respectively. The values 224-231 are for modifier keys.

1 2 3 4 5 6 7 8 9 10 11
- err err err A B C D E F G H
12 13 14 15 16 17 18 19 20 21 22 23
I J K L M N O P Q R S T
24 25 26 27 28 29 30 31 32 33 34 35
U V W X Y Z 1 2 3 4 5 6
36 37 38 39 40 41 42 43 44 45 46 47
7 8 9 0 Enter Esc BSp Tab Space - / _ = / + [ / {
48 49 50 51 52 53 54 55 56 57 58 59
] / } \ / | ... ; / : ' / " ` / ~ , / < . / > / / ? Caps Lock F1 F2
60 61 62 63 64 65 66 67 68 69 70 71
F3 F4 F5 F6 F7 F8 F9 F10 F11 F12 PrtScr Scroll Lock
72 73 74 75 76 77 78 79 80 81 82 83
Pause Insert Home PgUp Delete End PgDn Right Left Down Up Num Lock
84 85 86 87 88 89 90 91 92 93 94 95
KP / KP * KP - KP + KP Enter KP 1 / End KP 2 / Down KP 3 / PgDn KP 4 / Left KP 5 KP 6 / Right KP 7 / Home
96 97 98 99 100 101 102 103 104 105 106 107
KP 8 / Up KP 9 / PgUp KP 0 / Ins KP . / Del ... Applic Power KP = F13 F14 F15 F16
108 109 110 111 112 113 114 115 116 117 118 119
F17 F18 F19 F20 F21 F22 F23 F24 Execute Help Menu Select
120 121 122 123 124 125 126 127 128 129 130 131
Stop Again Undo Cut Copy Paste Find Mute Volume Up Volume Down Locking Caps Lock Locking Num Lock
132 133 134 135 136 137 138 139 140 141 142 143
Locking Scroll Lock KP , KP = Internat Internat Internat Internat Internat Internat Internat Internat Internat
144 145 146 147 148 149 150 151 152 153 154 155
LANG LANG LANG LANG LANG LANG LANG LANG LANG Alt Erase SysRq Cancel
156 157 158 159 160 161 162 163 164 165166167
Clear Prior Return Separ Out Oper Clear / Again CrSel / Props ExSel
224 225 226 227 228 229 230 231
LCtrl LShift LAlt LGUI RCtrl RShift RAlt RGUI


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