Dock

configname: CONFIG_ACPI_DOCK

Linux Kernel Configuration
└─>Power management and ACPI options
└─>ACPI (Advanced Configuration and Power Interface) Support
└─>Dock
In linux kernel since version 4.2 (release Date: 2015-08-30)  
This driver supports ACPI-controlled docking stations and removable
drive bays such as the IBM Ultrabay and the Dell Module Bay.

depends
CONFIG_ACPI