linux-kernel - Re: [PATCH v8 6/7] iio: accel: kionix-kx022a: Add a function to retrieve number of bytes in buffer

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Message-ID: <CAFukWp0ubncNcMiw-s_h5GoP1_RsjTaw3XxayGMuaeJJJneBow@mail.gmail.com>
Date:   Thu, 24 Aug 2023 16:23:09 +0200
From:   Mehdi Djait <mehdi.djait.k@...il.com>
To:     Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
Cc:     Matti Vaittinen <mazziesaccount@...il.com>, jic23@...nel.org,
        krzysztof.kozlowski+dt@...aro.org, robh+dt@...nel.org,
        lars@...afoo.de, linux-iio@...r.kernel.org,
        linux-kernel@...r.kernel.org, devicetree@...r.kernel.org
Subject: Re: [PATCH v8 6/7] iio: accel: kionix-kx022a: Add a function to
 retrieve number of bytes in buffer

On Thu, Aug 24, 2023 at 4:06 PM Andy Shevchenko
<andriy.shevchenko@...ux.intel.com> wrote:
>
> On Thu, Aug 24, 2023 at 03:44:29PM +0200, Mehdi Djait wrote:
> > On Thu, Aug 24, 2023 at 3:39 PM Andy Shevchenko
> > <andriy.shevchenko@...ux.intel.com> wrote:
> > > On Thu, Aug 24, 2023 at 03:52:56PM +0300, Matti Vaittinen wrote:
> > > > On 8/24/23 14:58, Andy Shevchenko wrote:
> > > > > On Wed, Aug 23, 2023 at 11:16:40PM +0200, Mehdi Djait wrote:
>
> ...
>
> > > I see. I think my confusion can be easily cured by renaming the callback to
> > >
> > >         get_amount_bytes_in_fifo()
> > >
> > > or
> > >
> > >         get_bytes_in_fifo()
> > >
> > > or alike.
> >
> > or leave it as is. The function is documented:
>
> > + * @get_fifo_bytes: function pointer to get number of bytes in the FIFO buffer
>
> Do you find it unambiguous? I do not.
>
> Still needs more words to explain if it's a capacity of FIFO or is it amount of
> valid bytes for the current transfer or what?

how about change the description to:
function pointer to get amount  of acceleration data bytes currently
stored in the sensor's FIFO buffer

and change the function to "get_amount_bytes_in_fifo()"

--
Kind Regards
Mehdi Djait