default or selected kernelversion does not have config value CONFIG_BLK_DEV_4DRIVES.
Result is shown for kernelversion 6.9.9
Generic 4 drives/port support
modulename: ide-4drives.ko
configname: CONFIG_BLK_DEV_4DRIVES
Linux Kernel Configuration
└─>Device Drivers
└─>ATA/ATAPI/MFM/RLL support (DEPRECATED)
└─>Generic 4 drives/port support
In linux kernel since version 2.6.20 (release Date: 2007-02-04)
Certain older chipsets, including the Tekram 690CD, use a single set
of I/O ports at 0x1f0 to control up to four drives, instead of the
customary two drives per port. Support for this can be enabled at
runtime using the "ide-4drives.probe" kernel boot parameter if you
say Y here.
of I/O ports at 0x1f0 to control up to four drives, instead of the
customary two drives per port. Support for this can be enabled at
runtime using the "ide-4drives.probe" kernel boot parameter if you
say Y here.