default or selected kernelversion does not have config value CONFIG_INPUT_IXP4XX_BEEPER.
Result is shown for kernelversion 6.9.9

IXP4XX Beeper support

modulename: ixp4xx-beeper.ko

configname: CONFIG_INPUT_IXP4XX_BEEPER

Linux Kernel Configuration
└─>Device Drivers
└─>Input device support
└─>Miscellaneous devices
└─>IXP4XX Beeper support
In linux kernel since version 2.6.20 (release Date: 2007-02-04)  
If you say yes here, you can connect a beeper to the
ixp4xx gpio pins. This is used by the LinkSys NSLU2.

If unsure, say Y.

To compile this driver as a module, choose M here: the
module will be called ixp4xx-beeper.

source code: