CONFIG_USB_F_TCM (not configurable)

modulename: usb_f_tcm.ko

configname: CONFIG_USB_F_TCM

Linux Kernel Configuration
└─>Device Drivers
└─>USB support
└─>USB Gadget Support
└─>USB_F_TCM
In linux kernel since version 4.1 (release Date: 2015-06-21)  
source code:
drivers/usb/gadget/function//

is depended by
CONFIG_USB_GADGET_TARGET