firmware version:  Armbian_20.02.1_Orangepilite2_bionic_current_5.4.20.img   ================= cmd log [dengzy@opl2 ~]$ sudo modprobe sunxi-cir [dengzy@opl2 ~]$ lsmod | grep cir 2:sunxi_cir              16384  0 3:rc_core                45056  1 sunxi_cir [dengzy@opl2 ~]$ ls /dev/input/ by-path  event0  mice [dengzy@opl2 ~]$ evtest No device specified, trying to scan all of /dev/input/event* Not running as root, no devices may be available. Available devices: /