Re: [PATCH RFC 0/3] iio: add Open Sensor Fusion UART driver

From: Jonathan Cameron

Date: Fri May 22 2026 - 11:27:27 EST


On Wed, 20 May 2026 16:28:40 +0900
Jinseob Kim <kimjinseob88@xxxxxxxxx> wrote:

> Open Sensor Fusion is a UART-attached sensor aggregation device. The current
> prototype sends OSF protocol v0 frames over a host UART link. This RFC adds the
> first Linux IIO receive path for that UART stream.
>
> The first transport is serdev UART. USB, real sensor reads, fusion output, and
> production timestamp correlation are intentionally left out of this series.
>
> The driver code is kept in one patch for the first RFC to avoid intermediate
> non-buildable states. The internal files are still split by protocol, stream,
> core, transport, and IIO code.

Even for an RFC you need to break it up. If you do it right there won't
be non-buildable states. Take a look at how any complex IIO driver is added.

Key thing here seems to be that we need some references.

Superficially sounds like an open source sensor hub implementation but
we need a datasheet / reference manual to be able to review this properly.

I'll have a first look but it's likely to be somewhat superficial.