default or selected kernelversion does not have config value CONFIG_ACTISYS_DONGLE.
Result is shown for kernelversion 5.9.8

ACTiSYS IR-220L and IR220L+ dongle

modulename: actisys-sir.ko

Linux Kernel Configuration
└─> Device Drivers
└─> Staging drivers
└─> IrDA (infrared) subsystem support
└─> Infrared-port device drivers
└─> ACTiSYS IR-220L and IR220L+ dongle

Say Y here if you want to build support for the ACTiSYS IR-220L and
IR220L+ dongles. To compile it as a module, choose M here. The
ACTiSYS dongles attaches to the normal 9-pin serial port connector,
and can currently only be used by IrTTY. To activate support for
ACTiSYS dongles you will have to start irattach like this:
"irattach -d actisys" or "irattach -d actisys+".

source code: