On Fri, Feb 20, 2015 at 1:52 AM, Linus Walleij <[email protected]> wrote: > On Thu, Feb 19, 2015 at 9:53 AM, folkert <[email protected]> wrote: > >> I also think that this interface is cumbersome. I did not measure it(!) >> but I think adding this open/seek + read construction may add all kinds >> of overhead. Especially since my use-case requires the lowest latency >> possible. Not to forget that conversion of the measured value to ascii >> and back. > > Yes this interface sucks. > > The tentative long-term plan is to replace it with something like > a char device that can handle a quick context switch and also > issuing calls to set multiple pins at once, as we now have an > in-kernel interface for that (that I totally refuse to support from > sysfs).
Mmm, I was thinking it would be nice to have a (new, redesigned) sysfs interface for this. :P Aren't we going to make things less accessible if we use a char device? -- To unsubscribe from this list: send the line "unsubscribe linux-gpio" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
