default or selected kernelversion does not have config value CONFIG_OLD_BELKIN_DONGLE.
Result is shown for kernelversion 6.7-rc3

Old Belkin dongle

modulename: old_belkin-sir.ko


Linux Kernel Configuration
└─>Device Drivers
└─>Staging drivers
└─>IrDA (infrared) subsystem support
└─>Infrared-port device drivers
└─>Old Belkin dongle
In linux kernel since version 2.6.12  
Say Y here if you want to build support for the Adaptec Airport 1000
and 2000 dongles. If you want to compile it as a module, choose
M here. Some information is contained in the comments
at the top of <file:drivers/net/irda/old_belkin-sir.c>.

source code: