On Thu, Jul 03, 2014 at 03:52:21PM +0100, Kieran Kunhya wrote:
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?
I'd turn it into a patch for the drivers/block/ directory and submit it to the people that scripts/get_maintainer.pl says to use. Also cc: the linux-fsdevel mailing list as the developers there might be able to help out on the block dma issues. I can always put it in the drivers/staging/ directory today, but I don't see any reason it shouldn't just go into the main part of the kernel instead. Hope this helps, greg k-h