On Thu, Dec 12, 2024 at 01:24:45PM +0800, Baochen Qiang wrote: > yeah, you are right, Robin. didn't know there are convenient interfaces > like these already. FYI, the DMA-API documentation says pretty straight forward to not use the streaming API and documents these interfaces. But maybe it's not clear enough, so I'm open to suggestions on how to make it more obvious.