>On Tue, Apr 21, 2020 at 05:09:47PM +0800, 王文虎 wrote: >> Hi, Greg, Arnd, >> >> Thank you for your comments first, and then really very very very sorry >> for driving Greg to sigh and I hope there would be chance to share Moutai >> (rather than whisky, we drink it much, a kind of Baijiu), after the virus. >> >> Back to the comments, I'd like to do a bit of documentation or explanation >> first, >> which should have been done early or else there would not be so much to >> explain: >> 1. What I have been trying to do is to access the Freescale Cache-SRAM >> device form >> user level; >> 2. I implemented it using UIO, which was thought of non-proper; > >I still think that using uio is the best way to do this, and never said >it was "non-proper". All we got bogged down in was the DT >representation of stuff from what I remember. That should be worked >through. > >thanks, > >greg k-h
Surely, but so how would things go? Scott said not fit for him. And he was gonna to write a new patch(Oh, that is what I have been doing.....,and I really donot think he need to do it) This is the final version using UIO, and even Christophe had Reviewed-by, https://lore.kernel.org/patchwork/patch/1226225/ If no ending reaches, I have to make a step forward to keep working with the misc device version. Thanks, and regards, Wenhu