2021-02-12 11:39:35

by Lars-Peter Clausen

[permalink] [raw]
Subject: Re: Adding custom functional callbacks to IIO driver

On 2/12/21 12:07 PM, Anand Ashok Dumbre wrote:
> Hello,
>
> I have an IIO adc driver that measures temperatures and voltages on the SOC.
> There are other kernel modules interested in the temperature and voltage event information.
>
> Would using a custom callback registration mechanism be advisable?
> Is there something similar done already in IIO that can be leveraged?

Hi,

Have a look at the IIO consumer API that allows other kernel modules to
subscribe to the output of an IIO device.
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/include/linux/iio/consumer.h


- Lars


2021-02-12 11:41:35

by Anand Ashok Dumbre

[permalink] [raw]
Subject: RE: Adding custom functional callbacks to IIO driver

Thanks a lot I will go through it.

> -----Original Message-----
> From: Lars-Peter Clausen <[email protected]>
> Sent: Friday 12 February 2021 5:06 PM
> To: Anand Ashok Dumbre <[email protected]>; Jonathan Cameron
> <[email protected]>; [email protected]; Peter Meerwald-Stadler
> <[email protected]>; Michal Simek <[email protected]>; linux-
> [email protected]; [email protected]; linux-
> [email protected]
> Subject: Re: Adding custom functional callbacks to IIO driver
>
> On 2/12/21 12:07 PM, Anand Ashok Dumbre wrote:
> > Hello,
> >
> > I have an IIO adc driver that measures temperatures and voltages on the
> SOC.
> > There are other kernel modules interested in the temperature and voltage
> event information.
> >
> > Would using a custom callback registration mechanism be advisable?
> > Is there something similar done already in IIO that can be leveraged?
>
> Hi,
>
> Have a look at the IIO consumer API that allows other kernel modules to
> subscribe to the output of an IIO device.
> https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/inclu
> de/linux/iio/consumer.h
>
>
> - Lars