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

enable the DVB ioctls abuse on ivtv driver

configname: CONFIG_VIDEO_IVTV_DEPRECATED_IOCTLS

Linux Kernel Configuration
└─>Device Drivers
└─>Multimedia support
└─>Media PCI Adapters
└─>enable the DVB ioctls abuse on ivtv driver
In linux kernel since version 3.10 (release Date: 2013-06-30)  
Enable the usage of the a DVB set of ioctls that were abused by
IVTV driver for a while.

Those ioctls were not needed for a long time, as IVTV implements
the proper V4L2 ioctls since kernel 3.3.

If unsure, say N.