_HALP_DMA_CHANNEL

Windows 10 | 2016 1607 Redstone 1 (Anniversary Update) x64
Windows 10 | 2016 1703 Redstone 2 (Creators Update) x64
Windows 10 | 2016 1709 Redstone 3 (Fall Creators Update) x64
Sorry, but such structure doesn't exist in chosen version of the kernel.