Re: DMA Engine: Transfer From Userspace

From: Federico Vaga
Date: Mon Jun 22 2020 - 05:26:16 EST


On Sat, Jun 20, 2020 at 12:47:16AM +0200, Federico Vaga wrote:
Hello,

is there the possibility of using a DMA engine channel from userspace?

Something like:
- configure DMA using ioctl() (or whatever configuration mechanism)
- read() or write() to trigger the transfer

Let me add one more question related to my case. The dmatest module does not
perform tests on SLAVEs. why?

Thanks


--
Federico Vaga [CERN BE-CO-HT]