ilmich thanks for the detailed explanations.
Тhis is the result of the buttons not working before:
button HOME = KEY_HOME
button MOUSE = KEY_O
buttons PREVIOUS, NEXT, 1/A/a - they are not touched as you said
buttons RED, GREEN, YELLOW, BLUE - something is wrong here. LED flashes but no reactions in Kodi. I installed an Add-on Keymap Editor and it shows the same longer code 16839168 for all four buttons. For comparison, the HOME button is 61622 - only five digits like all other buttons.
Following your instructions this is what ir_key5 should look like specific to my needs:
(can you make rk3229-box-v884k.dtb)
ir_key5 {
rockchip,usercode = <0x1dcc>;
rockchip,key_table =
<0xee KEY_ENTER>,
<0xf0 KEY_BACK>,
<0xf8 KEY_UP>,
<0xbb KEY_DOWN>,
<0xef KEY_LEFT>,
<0xed KEY_RIGHT>,
<0xf1 KEY_VOLUMEUP>,
<0xfd KEY_VOLUMEDOWN>,
<0xff KEY_POWER>,
<0xf3 KEY_MUTE>,
<0xbf KEY_MENU>,
<0xbe KEY_1>,
<0xba KEY_2>,
<0xb2 KEY_3>,
<0xbd KEY_4>,
<0xb9 KEY_5>,
<0xb1 KEY_6>,
<0xbc KEY_7>,
<0xb8 KEY_8>,
<0xb0 KEY_9>,
<0xb6 KEY_0>,
<0xb5 KEY_BACKSPACE>,
<0xfa KEY_RED>,
<0xfe KEY_GREEN>,
<0xf6 KEY_EPG>,
<0xf2 KEY_BLUE>,
<0xf9 KEY_PREVIOUS>,
<0xf5 KEY_NEXT>,
<0xfc KEY_HOME>,
<0xb3 KEY_INFO>,
<0xb7 KEY_SUBTITLE>;
};
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