/usr/share/X11/xkb/keycodes/evdev is in xkb-data 2.10.1-1ubuntu1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314  | // translation from evdev scancodes to something resembling xfree86 keycodes.
default xkb_keycodes "evdev" {
	minimum = 8;
	maximum = 255;
        # Added for pc105 compatibility
        <LSGT> = 94;
	<TLDE> = 49;
	<AE01> = 10;
	<AE02> = 11;
	<AE03> = 12;
	<AE04> = 13;
	<AE05> = 14;
	<AE06> = 15;
	<AE07> = 16;
	<AE08> = 17;
	<AE09> = 18;
	<AE10> = 19;
	<AE11> = 20;
	<AE12> = 21;
	<BKSP> = 22;
	<TAB> = 23;
	<AD01> = 24;
	<AD02> = 25;
	<AD03> = 26;
	<AD04> = 27;
	<AD05> = 28;
	<AD06> = 29;
	<AD07> = 30;
	<AD08> = 31;
	<AD09> = 32;
	<AD10> = 33;
	<AD11> = 34;
	<AD12> = 35;
	<BKSL> = 51;
	alias <AC12> = <BKSL>;
	<RTRN> = 36;
	<CAPS> = 66;
	<AC01> = 38;
	<AC02> = 39;
	<AC03> = 40;
	<AC04> = 41;
	<AC05> = 42;
	<AC06> = 43;
	<AC07> = 44;
	<AC08> = 45;
	<AC09> = 46;
	<AC10> = 47;
	<AC11> = 48;
	<LFSH> = 50;
	<AB01> = 52;
	<AB02> = 53;
	<AB03> = 54;
	<AB04> = 55;
	<AB05> = 56;
	<AB06> = 57;
	<AB07> = 58;
	<AB08> = 59;
	<AB09> = 60;
	<AB10> = 61;
	<RTSH> = 62;
	<LALT> = 64;
	<LCTL> = 37;
	<SPCE> = 65;
	<RCTL> = 105;
	<RALT> = 108;
	// Microsoft keyboard extra keys
	<LWIN> = 133;
	<RWIN> = 134;
	<COMP> = 135;
	alias <MENU> = <COMP>;
	<ESC> = 9;
	<FK01> = 67;
	<FK02> = 68;
	<FK03> = 69;
	<FK04> = 70;
	<FK05> = 71;
	<FK06> = 72;
	<FK07> = 73;
	<FK08> = 74;
	<FK09> = 75;
	<FK10> = 76;
	<FK11> = 95;
	<FK12> = 96;
	<PRSC> = 107;
	// <SYRQ> = 107;
	<SCLK> = 78;
	<PAUS> = 127;
	// <BRK> = 419;
	<INS> = 118;
	<HOME> = 110;
	<PGUP> = 112;
	<DELE> = 119;
	<END> = 115;
	<PGDN> = 117;
	<UP> = 111;
	<LEFT> = 113;
	<DOWN> = 116;
	<RGHT> = 114;
	<NMLK> = 77;
	<KPDV> = 106;
	<KPMU> = 63;
	<KPSU> = 82;
	<KP7> = 79;
	<KP8> = 80;
	<KP9> = 81;
	<KPAD> = 86;
	<KP4> = 83;
	<KP5> = 84;
	<KP6> = 85;
	<KP1> = 87;
	<KP2> = 88;
	<KP3> = 89;
	<KPEN> = 104;
	<KP0> = 90;
	<KPDL> = 91;
	<KPEQ> = 125;
	<FK13> = 191;
	<FK14> = 192;
	<FK15> = 193;
	<FK16> = 194;
	<FK17> = 195;
	<FK18> = 196;
	<FK19> = 197;
	<FK20> = 198;
	<FK21> = 199;
	<FK22> = 200;
	<FK23> = 201;
	<FK24> = 202;
	// Keys that are generated on Japanese keyboards
	//<HZTG> =  93;	// Hankaku/Zenkakau toggle - not actually used
	alias <HZTG> = <TLDE>;
	<HKTG> = 101;	// Hiragana/Katakana toggle
	<AB11> = 97;	// backslash/underscore
	<HENK> = 100;	// Henkan
	<MUHE> = 102;	// Muhenkan
	<AE13> = 132;	// Yen
	<KATA> =  98;	// Katakana
	<HIRA> =  99;	// Hiragana
	<JPCM> = 103;	// KPJPComma
	//<RO>   =  97;	// Romaji
	// Keys that are generated on Korean keyboards
	<HNGL> = 130;	// Hangul Latin toggle
	<HJCV> = 131;	// Hangul to Hanja conversion
	// Solaris compatibility
	alias <LMTA> = <LWIN>;
	alias <RMTA> = <RWIN>;
	<MUTE> = 121;
	<VOL-> = 122;
	<VOL+> = 123;
	<POWR> = 124;
	<STOP> = 136;
	<AGAI> = 137;
	<PROP> = 138;
	<UNDO> = 139;
	<FRNT> = 140;
	<COPY> = 141;
	<OPEN> = 142;
	<PAST> = 143;
	<FIND> = 144;
	<CUT>  = 145;
	<HELP> = 146;
	// Extended keys that may be generated on "Internet" keyboards.
	// evdev has standardize names for these.
	<LNFD> = 109;	// #define KEY_LINEFEED            101
	<I120> = 120;	// #define KEY_MACRO               112
	<I126> = 126;	// #define KEY_KPPLUSMINUS         118
	<I128> = 128;   // #define KEY_SCALE               120
	<I129> = 129;	// #define KEY_KPCOMMA             121
	<I147> = 147;	// #define KEY_MENU                139
	<I148> = 148;	// #define KEY_CALC                140
	<I149> = 149;	// #define KEY_SETUP               141
	<I150> = 150;	// #define KEY_SLEEP               142
	<I151> = 151;	// #define KEY_WAKEUP              143
	<I152> = 152;	// #define KEY_FILE                144
	<I153> = 153;	// #define KEY_SENDFILE            145
	<I154> = 154;	// #define KEY_DELETEFILE          146
	<I155> = 155;	// #define KEY_XFER                147
	<I156> = 156;	// #define KEY_PROG1               148
	<I157> = 157;	// #define KEY_PROG2               149
	<I158> = 158;	// #define KEY_WWW                 150
	<I159> = 159;	// #define KEY_MSDOS               151
	<I160> = 160;	// #define KEY_COFFEE              152
	<I161> = 161;	// #define KEY_DIRECTION           153
	<I162> = 162;	// #define KEY_CYCLEWINDOWS        154
	<I163> = 163;	// #define KEY_MAIL                155
	<I164> = 164;	// #define KEY_BOOKMARKS           156
	<I165> = 165;	// #define KEY_COMPUTER            157
	<I166> = 166;	// #define KEY_BACK                158
	<I167> = 167;	// #define KEY_FORWARD             159
	<I168> = 168;	// #define KEY_CLOSECD             160
	<I169> = 169;	// #define KEY_EJECTCD             161
	<I170> = 170;	// #define KEY_EJECTCLOSECD        162
	<I171> = 171;	// #define KEY_NEXTSONG            163
	<I172> = 172;	// #define KEY_PLAYPAUSE           164
	<I173> = 173;	// #define KEY_PREVIOUSSONG        165
	<I174> = 174;	// #define KEY_STOPCD              166
	<I175> = 175;	// #define KEY_RECORD              167
	<I176> = 176;	// #define KEY_REWIND              168
	<I177> = 177;	// #define KEY_PHONE               169
	<I178> = 178;	// #define KEY_ISO                 170
	<I179> = 179;	// #define KEY_CONFIG              171
	<I180> = 180;	// #define KEY_HOMEPAGE            172
	<I181> = 181;	// #define KEY_REFRESH             173
	<I182> = 182;	// #define KEY_EXIT                174
	<I183> = 183;	// #define KEY_MOVE                175
	<I184> = 184;	// #define KEY_EDIT                176
	<I185> = 185;	// #define KEY_SCROLLUP            177
	<I186> = 186;	// #define KEY_SCROLLDOWN          178
	<I187> = 187;	// #define KEY_KPLEFTPAREN         179
	<I188> = 188;	// #define KEY_KPRIGHTPAREN        180
	<I189> = 189;	// #define KEY_NEW                 181
	<I190> = 190;	// #define KEY_REDO                182
	<I208> = 208;	// #define KEY_PLAYCD              200
	<I209> = 209;	// #define KEY_PAUSECD             201
	<I210> = 210;	// #define KEY_PROG3               202
	<I211> = 211;	// #define KEY_PROG4               203 conflicts with AB11
	<I212> = 212;   // #define KEY_DASHBOARD           204
	<I213> = 213;	// #define KEY_SUSPEND             205
	<I214> = 214;	// #define KEY_CLOSE               206
	<I215> = 215;	// #define KEY_PLAY                207
	<I216> = 216;	// #define KEY_FASTFORWARD         208
	<I217> = 217;	// #define KEY_BASSBOOST           209
	<I218> = 218;	// #define KEY_PRINT               210
	<I219> = 219;	// #define KEY_HP                  211
	<I220> = 220;	// #define KEY_CAMERA              212
	<I221> = 221;	// #define KEY_SOUND               213
	<I222> = 222;	// #define KEY_QUESTION            214
	<I223> = 223;	// #define KEY_EMAIL               215
	<I224> = 224;	// #define KEY_CHAT                216
	<I225> = 225;	// #define KEY_SEARCH              217
	<I226> = 226;	// #define KEY_CONNECT             218
	<I227> = 227;	// #define KEY_FINANCE             219
	<I228> = 228;	// #define KEY_SPORT               220
	<I229> = 229;	// #define KEY_SHOP                221
	<I230> = 230;	// #define KEY_ALTERASE            222
	<I231> = 231;	// #define KEY_CANCEL              223
	<I232> = 232;	// #define KEY_BRIGHTNESSDOWN      224
	<I233> = 233;	// #define KEY_BRIGHTNESSUP        225
	<I234> = 234;	// #define KEY_MEDIA               226
	<I235> = 235;	// #define KEY_SWITCHVIDEOMODE     227
	<I236> = 236;	// #define KEY_KBDILLUMTOGGLE      228
	<I237> = 237;	// #define KEY_KBDILLUMDOWN        229
	<I238> = 238;	// #define KEY_KBDILLUMUP          230
	<I239> = 239;	// #define KEY_SEND                231
	<I240> = 240;	// #define KEY_REPLY               232
	<I241> = 241;	// #define KEY_FORWARDMAIL         233
	<I242> = 242;	// #define KEY_SAVE                234
	<I243> = 243;	// #define KEY_DOCUMENTS           235
	<I244> = 244;	// #define KEY_BATTERY             236
	<I245> = 245;	// #define KEY_BLUETOOTH           237
	<I246> = 246;	// #define KEY_WLAN                238
	<I247> = 247;	// #define KEY_UWB                 239
	<I248> = 248;	// #define KEY_UNKNOWN             240
	<I249> = 249;	// #define KEY_VIDEO_NEXT          241
	<I250> = 250;	// #define KEY_VIDEO_PREV          242
	<I251> = 251;	// #define KEY_BRIGHTNESS_CYCLE    243
	<I252> = 252;	// #define KEY_BRIGHTNESS_ZERO     244
	<I253> = 253;	// #define KEY_DISPLAY_OFF         245
	// Fake keycodes for virtual keys
	<LVL3> =   92;
	<MDSW> =   203;
	<ALT>  =   204;
	<META> =   205;
	<SUPR> =   206;
	<HYPR> =   207;
	indicator 1  = "Caps Lock";
	indicator 2  = "Num Lock";
	indicator 3  = "Scroll Lock";
	indicator 4  = "Compose";
	indicator 5  = "Kana";
	indicator 6  = "Sleep";
	indicator 7  = "Suspend";
	indicator 8  = "Mute";
	indicator 9  = "Misc";
	indicator 10 = "Mail";
	indicator 11 = "Charging";
	alias <ALGR> = <RALT>;
	// For Brazilian ABNT2
	alias <KPPT> = <I129>;
};
// PC98
xkb_keycodes "pc98" {
    include "evdev(evdev)"
};
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