On Wed, Dec 8, 2021 at 2:56 AM Jonathan Cameron <Jonathan.Cameron@xxxxxxxxxx> wrote: > On Tue, 7 Dec 2021 13:40:19 +0100 > Henk <yoda@xxxxxxxxxxxxx> wrote: ... > Two options for this. If the thing we are controlling is the raw channel then > we have the option to provide _scale reflecting the fact that a large value > e.g. GHz is not normally controlled at a Hz granularity. But some sensors can be really high-precision ones, although I couldn't imagine a value that requires more than 32-bit for that in general engineering. Where one may ask for more is something like very precise physics experiments in CERN :-) > Where that doesn't apply or the range is really very big we do have the > slightly nasty option of IIO_VAL_INT_64 > > https://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio.git/commit/?h=testing&id=6bb835f3d00467c9a5e35f4955afa29df96a404e > > This is very new, so not in mainline yet, though it is queued up for the > next merge window and should be linux-next. -- With Best Regards, Andy Shevchenko
