Re: [PATCH v1 31/31] serial: 8250_mxpcie: add RS485-2W auto-adjust sysfs control

[Andy Shevchenko]

On Wed, Dec 3, 2025 at 11:24 AM Andy Shevchenko
<andy.shevchenko@xxxxxxxxx> wrote:
> On Wed, Dec 3, 2025 at 4:56 AM Crescent Hsieh <crescentcy.hsieh@xxxxxxxx> wrote:
> > On Mon, Dec 01, 2025 at 04:45:58AM +0200, Andy Shevchenko wrote:
> > > On Sun, Nov 30, 2025 at 12:46 PM Crescent Hsieh
> > > <crescentcy.hsieh@xxxxxxxx> wrote:

...

> > >  while ABI is being broken,
>
> In case you are wondering what I was talking about in the above, I
> meant move from /dev/ttyMIxx to /dev/ttySxx. This will break all the
> current kernel command lines and hence setups with the explicit
> mention of the /dev/ttyMIxx, such as console=.

FWIW, we used to have in the past more than one case like this, so if
it's well justified and customers are aware of the change, it may go
in.

-- 
With Best Regards,
Andy Shevchenko