Re: [PATCH v5 2/2] gpio: gpio-cascade: add generic GPIO cascade

["Enrico Weigelt, metux IT consult" <lkml@xxxxxxxxx>]

On 21.06.21 19:43, Andy Shevchenko wrote:

> Since in parallel there is a discussion about the virtio-gpio
> interface, how will this work with it?

Haven't really understood what this is actually doing. A multiplexer
where only external line is connected to some actual gpio at a time ?
Or does it merge multiple inputs into one (eg. logical OR) ?

Is that about real hardware mux chips or just a software only ?

What is the actual use case ?

For now, I don't see any relation to virtio-gpio. Correct me if I'm
wrong.


--mtx

-- 
---
Hinweis: unverschlüsselte E-Mails können leicht abgehört und manipuliert
werden ! Für eine vertrauliche Kommunikation senden Sie bitte ihren
GPG/PGP-Schlüssel zu.
---
Enrico Weigelt, metux IT consult
Free software and Linux embedded engineering
info@xxxxxxxxx -- +49-151-27565287