Re: [PATCH 0/6] GPIO character device skeleton

[Linus Walleij <linus.walleij@xxxxxxxxxx>]

On Sat, Oct 24, 2015 at 8:42 PM, Markus Pargmann <mpa@xxxxxxxxxxxxxx> wrote:

> What happens if we have two I2C gpio expanders with the same I2C
> addresses connected to different I2C busses? If I see this correctly
> they would both show up with the same name. Is there an easy and
> race-free way to see which GPIO chip is connected to which I2C bus?

My spontaneous question is: how does ethernet interfaces or whatever
handle this nowadays to get unique device names?

Currently we are probe-order dependent. It would be good to fix
the plug-order business from day 1 but how?

Yours,
Linus Walleij
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