Re: [PATCH v4 2/3] iio: add MEMSensing MSA311 3-axis accelerometer driver

From: Dmitry Rokosov
Date: Tue Aug 09 2022 - 05:53:03 EST


On Sat, Aug 06, 2022 at 03:55:23PM +0100, Jonathan Cameron wrote:

[...]

> >
> > > > + indio_dev->modes = 0; /* setup buffered mode later */
> > >
> > > Why explicit assignment to 0? Doesn't kzalloc() do it for you?
> >
> > kzalloc() will do it for me, of course. Previously, I initialized modes to
> > INDIO_DIRECT_MODE to just provide default value for that. Jonathan
> > suggested to replace it with 0.
>
> I did? I wonder what I was smoking that day.
> Should be set to INDIO_DIRECT_MODE as you had it previously.
>
> (From what I recall it will work either way but we have in the past had
> core code that checked this and may do again in the future so drivers should
> still be setting it to specify they provide sysfs interfaces to directly read
> the channels).

Jonathan, really sorry I referred to you. I'm confused. This comment was
from Andy in the v3 discussion:

https://lore.kernel.org/linux-iio/CAHp75Vc0+ckNnm2tzLMPrjeFRjwoj3zy0C4koNShFRG3kP8b6w@xxxxxxxxxxxxxx/

I will revert this change. Thank you for feedback.

--
Thank you,
Dmitry