July 3, 2014
2:52 p.m.
Hello, I have reverse engineered a driver for Sony SxS memory cards which are expresscards used in professional cameras. Unfortunately I haven't figured out how to make it work with DMA as used in the block device API; currently it only works with a memcpy. I'm not really sure if I'm using the block device API incorrectly and was told to ask here (and cc GKH) since I didn't hear much from lkml. My code is here: https://github.com/kierank/sxs-linux What is the next step for getting this into mailing and who is the person to ask about block device DMA? Kieran