linux-kernel - Re: [PATCH 3/4] iio: pressure: Add timestamp and scan

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Date: Mon, 4 Mar 2024 21:07:09 +0200
From: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
To: Vasileios Amoiridis <vassilisamir@...il.com>
Cc: jic23@...nel.org, lars@...afoo.de, ang.iglesiasg@...il.com,
	mazziesaccount@...il.com, ak@...klinger.de,
	petre.rodan@...dimension.ro, phil@...pberrypi.com, 579lpy@...il.com,
	linux-iio@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 3/4] iio: pressure: Add timestamp and scan_masks for
 BMP280 driver

On Mon, Mar 04, 2024 at 07:50:17PM +0100, Vasileios Amoiridis wrote:
> On Mon, Mar 04, 2024 at 01:47:47PM +0200, Andy Shevchenko wrote:
> > On Sun, Mar 03, 2024 at 05:52:59PM +0100, Vasileios Amoiridis wrote:

..

> > > +enum bmp280_scan {
> > > +	BMP280_TEMP,
> > > +	BMP280_PRESS,
> > > +	BME280_HUMID,
> > > +};
> > 
> > Hmm... Why do we need to actually copy the IIO ones? Can't we use IIO ones
> > directly (or in some way)?
> 
> What do you mean exactly by copying the IIO ones? These values are used as
> indexes to enable channels in the avail_scan_masks below.

Yeah, I have now an answer to my question. The IIO drivers provide these lists
as mapping between available channels (as starting from 0) and real channels
as per IIO specifications (which can be anything, although limited currently
by 40 or so).

-- 
With Best Regards,
Andy Shevchenko