linux-kernel - Re: [PATCH v2] tty: serial: 8250: Fix port count mismatch with the device

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Message-ID: <CAHp75VfAOqyeMF6wbHenDSpmOL8AFQFDjjL1zRfOqLOXdUahQA@mail.gmail.com>
Date: Mon, 17 Jun 2024 12:54:34 +0200
From: Andy Shevchenko <andy.shevchenko@...il.com>
To: Crescent Hsieh <crescentcy.hsieh@...a.com>
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>, Jiri Slaby <jirislaby@...nel.org>, 
	linux-kernel@...r.kernel.org, linux-serial@...r.kernel.org
Subject: Re: [PATCH v2] tty: serial: 8250: Fix port count mismatch with the device

On Mon, Jun 17, 2024 at 8:31 AM Crescent Hsieh
<crescentcy.hsieh@...a.com> wrote:
>
> Normally, the number of ports is indicated by the third digit of the
> device ID on Moxa PCI serial boards. For example, `0x1121` indicates a
> device with 2 ports.
>
> However, `CP116E_A_A` and `CP116E_A_B` are exceptions; they have 8
> ports, but the third digit of the device ID is `6`.
>
> This patch introduces a function to retrieve the number of ports on Moxa
> PCI serial boards, addressing the issue described above.

Now it makes sense to me.
Reviewed-by: Andy Shevchenko <andy@...nel.org>

-- 
With Best Regards,
Andy Shevchenko