Re: [v2 02/10] iio: document linear acceleration modifiers

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On Tue, 9 Nov 2021 09:00:09 +0100
Andrea Merello <andrea.merello@xxxxxxxxx> wrote:

> Il giorno gio 28 ott 2021 alle ore 12:35 Jonathan Cameron
> <jic23@xxxxxxxxxx> ha scritto:
> >
> > On Thu, 28 Oct 2021 12:18:32 +0200
> > Andrea Merello <andrea.merello@xxxxxxxxx> wrote:
> >  
> > > This patch introduces ABI documentation for new iio modifiers used for
> > > reporting "linear acceleration" measures.
> > >
> > > Signed-off-by: Andrea Merello <andrea.merello@xxxxxx>
> > > ---
> > >  Documentation/ABI/testing/sysfs-bus-iio | 8 ++++++++
> > >  1 file changed, 8 insertions(+)
> > >
> > > diff --git a/Documentation/ABI/testing/sysfs-bus-iio b/Documentation/ABI/testing/sysfs-bus-iio
> > > index 6ad47a67521c..5147a00bf24a 100644
> > > --- a/Documentation/ABI/testing/sysfs-bus-iio
> > > +++ b/Documentation/ABI/testing/sysfs-bus-iio
> > > @@ -1957,3 +1957,11 @@ Description:
> > >               Specify the percent for light sensor relative to the channel
> > >               absolute value that a data field should change before an event
> > >               is generated. Units are a percentage of the prior reading.
> > > +
> > > +What:                /sys/bus/iio/devices/iio:deviceX/in_accel_linear_x_raw
> > > +What:                /sys/bus/iio/devices/iio:deviceX/in_accel_linear_y_raw
> > > +What:                /sys/bus/iio/devices/iio:deviceX/in_accel_linear_z_raw
> > > +KernelVersion:       5.15
> > > +Contact:     linux-iio@xxxxxxxxxxxxxxx
> > > +Description:
> > > +             Raw (unscaled) linear acceleration readings.  
> >
> > Probably need more information that this.   What element is being 'removed' from
> > a normal acceleration measurement? What are units after application of offset and
> > scale?  Can cross refer to the in_accel_x_raw for that info if you like.  
> 
> OK.  So, may I just state something like "As per in_accel_X_raw
> attributes, but minus the gravity acceleration"  ?

Yup, something along those lines.

Wow, I had a lot of typos in my email. :)

Jonathan


> 
> > Also, but them immediately after the block with the in_accel_x_raw etc  
> 
> OK
> 
> > The organization fo that file needs a rethink but let us try to avoid making
> > it worse in the meeantime!
> >
> > Jonathan
> >
> >  




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