High Speed UART DMA PCI driver

modulename: hsu_dma_pci.ko

configname: CONFIG_HSU_DMA_PCI

Linux Kernel Configuration
└─>Device Drivers
└─>DMA Engine support
└─>High Speed UART DMA PCI driver
In linux kernel since version 3.10 (release Date: 2013-06-30)  
Support the High Speed UART DMA on the platfroms that
enumerate it as a PCI device. For example, Intel Medfield
has integrated this HSU DMA controller.

source code: