default or selected kernelversion does not have config value CONFIG_USB_IBMCAM.
Result is shown for kernelversion 5.4.69

USB IBM (Xirlink) C-it Camera support (DEPRECATED)

modulename: ibmcam.ko

configname: CONFIG_USB_IBMCAM

Linux Kernel Configuration
└─>Device Drivers
└─>Multimedia support
└─>Video capture adapters
└─>V4L USB devices
└─>USB IBM (Xirlink) C-it Camera support (DEPRECATED)
In linux kernel since version 2.6.20 (release Date: 2007-02-04)  
This driver is DEPRECATED please use the gspca xirlink_cit module
instead.

Say Y here if you want to connect a IBM "C-It" camera, also known as
"Xirlink PC Camera" to your computer's USB port.

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

This camera has several configuration options which
can be specified when you load the module. Read
Documentation/video4linux/ibmcam.txt to learn more.

source code: