Renesas USB-DMA Controller

modulename: usb-dmac.ko

configname: CONFIG_RENESAS_USB_DMAC

Linux Kernel Configuration
└─>Device Drivers
└─>DMA Engine support
└─>Renesas USB-DMA Controller
In linux kernel since version 4.1 (release Date: 2015-06-21)  
This driver supports the USB-DMA controller found in the Renesas
SoCs.

source code: