From: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
To: Angel Iglesias <ang.iglesiasg@gmail.com>
Cc: linux-iio@vger.kernel.org, linux-kernel@vger.kernel.org,
Jonathan Cameron <jic23@kernel.org>,
Lars-Peter Clausen <lars@metafoo.de>
Subject: Re: [PATCH 1/2] iio: pressure: bmp280: Allow multiple chips id per family of devices
Date: Fri, 18 Aug 2023 18:57:17 +0300 [thread overview]
Message-ID: <ZN+U3Rqef7bvhpZ7@smile.fi.intel.com> (raw)
In-Reply-To: <b209214a80c98f92db57be30883ec78dfc116ab0.camel@gmail.com>
On Fri, Aug 18, 2023 at 05:52:07PM +0200, Angel Iglesias wrote:
> On Fri, 2023-08-18 at 14:19 +0300, Andy Shevchenko wrote:
> > On Thu, Aug 17, 2023 at 11:05:21PM +0200, Angel Iglesias wrote:
...
> > > - const unsigned int chip_id;
> >
> > Yeah, this const makes a little sense...
> >
> > > + const unsigned int *chip_id;
> >
> > ...but not this :-)
>
> Isn't the same case as "const struct iio_chan_spec *channels" or "const int
> *oversampling_temp_avail". I thoght that this meant a pointer to a constant
> integer. On bmp280-core I declare the arrays with the modifiers static const.
Yes, and that is my point:
- old code makes a little sense
- new code makes a lot of sense
> > What I'm wondering is why it's int and not u8 / u16
> > (as it seems only a byte value there).
>
> Yeah, can be u8, as the reg width is 1 byte and this IDs are stored on one reg.
> I just carried over the int type from previous versions, but it's just wasting
> space :/
--
With Best Regards,
Andy Shevchenko
next prev parent reply other threads:[~2023-08-18 15:58 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-08-17 21:05 [PATCH 0/2] iio: pressure: bmp280: Add support for BMP390 Angel Iglesias
2023-08-17 21:05 ` [PATCH 1/2] iio: pressure: bmp280: Allow multiple chips id per family of devices Angel Iglesias
2023-08-18 11:19 ` Andy Shevchenko
2023-08-18 15:52 ` Angel Iglesias
2023-08-18 15:57 ` Andy Shevchenko [this message]
2023-08-18 16:41 ` Angel Iglesias
2023-08-28 14:28 ` Jonathan Cameron
2023-08-17 21:05 ` [PATCH 2/2] iio: pressure: bmp280: Add support for BMP390 Angel Iglesias
2023-08-18 11:21 ` Andy Shevchenko
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