default or selected kernelversion does not have config value CONFIG_BLK_DEV_DTC2278.
Result is shown for kernelversion 6.9.9

DTC-2278 support

modulename: dtc2278.ko

configname: CONFIG_BLK_DEV_DTC2278

Linux Kernel Configuration
└─>Device Drivers
└─>ATA/ATAPI/MFM/RLL support (DEPRECATED)
└─>DTC-2278 support
In linux kernel since version 2.6.20 (release Date: 2007-02-04)  
This driver is enabled at runtime using the "dtc2278.probe" kernel
boot parameter. It enables support for the secondary IDE interface
of the DTC-2278 card, and permits faster I/O speeds to be set as
well. See the <file:Documentation/ide/ide.txt> and
<file:drivers/ide/dtc2278.c> files for more info.

source code: