====== IR ======

(5.5) kernel has basic support for the IR-receiver

  CONFIG_MEDIA_SUPPORT=y
  CONFIG_MEDIA_RC_SUPPORT=y
  CONFIG_RC_CORE=y
  CONFIG_RC_DEVICES=y
  CONFIG_LIRC=y
  CONFIG_IR_MTK=y
  CONFIG_RC_DECODERS=y
  CONFIG_IR_NEC_DECODER=m

to use the IR-receiver you can try this commands

  apt install evtest                                                                                                                    
  apt install v4l-utils                                                                                                                 
  apt install ir-keytable                                                                                                               

  root@bpi-r2:~# ir-ctl -r
  root@bpi-r2:~# ir-keytable -s rc0 -p all -t
  root@bpi-r2:~# evtest