linux-kernel - Re: [PATCH] iio: accel: bmc150: Do not configure IRQ registers if no IRQ connected

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Message-ID: <7d327efe-94ce-458a-9394-eb5582f1c263@mailbox.org>
Date: Thu, 8 Jan 2026 22:55:30 +0100
From: Marek Vasut <marek.vasut@...lbox.org>
To: Hans de Goede <hansg@...nel.org>, Jonathan Cameron <jic23@...nel.org>,
 Linus Walleij <linusw@...nel.org>
Cc: linux-iio@...r.kernel.org, Nuno Sá <nuno.sa@...log.com>,
 Andy Shevchenko <andy@...nel.org>, David Lechner <dlechner@...libre.com>,
 Julien Stephan <jstephan@...libre.com>, Peter Zijlstra
 <peterz@...radead.org>, Salvatore Bonaccorso <carnil@...ian.org>,
 linux-kernel@...r.kernel.org
Subject: Re: [PATCH] iio: accel: bmc150: Do not configure IRQ registers if no
 IRQ connected

On 6/21/25 10:14 PM, Hans de Goede wrote:

Hello Hans,

> IIO has separate interfaces for exporting channels which can be polled by
> userspace and for triggers which is a more event driven interface.
> 
> It should be possible to modify the driver to skip the trigger registration,
> while keeping the channels. E.g. iio-sensor-proxy will then automaticallt
> switch to polling in userspace.
I wonder if this got fixed by this commit in the meantime:

3aa385a9c75c ("iio: accel: bmc150: Fix irq assumption regression")