default or selected kernelversion does not have config value CONFIG_BLK_DEV_DAC960.
Result is shown for kernelversion 6.9.9

Mylex DAC960/DAC1100 PCI RAID Controller support

modulename: DAC960.ko

configname: CONFIG_BLK_DEV_DAC960

Linux Kernel Configuration
└─>Device Drivers
└─>Block devices
└─>Mylex DAC960/DAC1100 PCI RAID Controller support
In linux kernel since version 2.6.20 (release Date: 2007-02-04)  
This driver adds support for the Mylex DAC960, AcceleRAID, and
eXtremeRAID PCI RAID controllers. See the file
<file:Documentation/blockdev/README.DAC960> for further information
about this driver.

To compile this driver as a module, choose M here: the
module will be called DAC960.

source code: