linux-kernel - Re: [PATCH v8] can, tty: can327 CAN/ldisc driver for ELM327 based OBD-II adapters

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Message-ID: <20220612155654.ij53kpw7cscj53nk@pengutronix.de>
Date:   Sun, 12 Jun 2022 17:56:54 +0200
From:   Marc Kleine-Budde <mkl@...gutronix.de>
To:     Max Staudt <max@...as.org>
Cc:     Wolfgang Grandegger <wg@...ndegger.com>, linux-can@...r.kernel.org,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Vincent Mailhol <vincent.mailhol@...il.com>,
        Oliver Neukum <oneukum@...e.com>, linux-kernel@...r.kernel.org,
        Vincent Mailhol <mailhol.vincent@...adoo.fr>
Subject: Re: [PATCH v8] can, tty: can327 CAN/ldisc driver for ELM327 based
 OBD-II adapters

On 12.06.2022 17:26:01, Max Staudt wrote:
> This is the can327 driver. It does a surprisingly good job at turning
> ELM327 based OBD-II interfaces into cheap CAN interfaces for simple
> homebrew projects.
> 
> Please see the included documentation for details and limitations:
> Documentation/networking/device_drivers/can/can327.rst
> 
> Cc: linux-can <linux-can@...r.kernel.org>
> Signed-off-by: Max Staudt <max@...as.org>
> Reviewed-by: Vincent Mailhol <mailhol.vincent@...adoo.fr>
> ---
> After a through review (thanks to Vincent Mailhol), this is hopefully
> the last version of the can327 upstreaming patch.
> 
> Thanks to everyone involved!

\o/

> diff --git a/include/uapi/linux/tty.h b/include/uapi/linux/tty.h
> index 9d0f06bfbac3..68aeae2addec 100644
> --- a/include/uapi/linux/tty.h
> +++ b/include/uapi/linux/tty.h
> @@ -38,8 +38,9 @@
>  #define N_NULL		27	/* Null ldisc used for error handling */
>  #define N_MCTP		28	/* MCTP-over-serial */
>  #define N_DEVELOPMENT	29	/* Manual out-of-tree testing */
> +#define N_CAN327	30	/* ELM327 based OBD-II interfaces */
>  
>  /* Always the newest line discipline + 1 */
> -#define NR_LDISCS	30
> +#define NR_LDISCS	31
>  
>  #endif /* _UAPI_LINUX_TTY_H */

Greg, do you want the include/uapi/linux/tty.h changes in a separate
patch and upstream it?

regards,
Marc

-- 
Pengutronix e.K.                 | Marc Kleine-Budde           |
Embedded Linux                   | https://www.pengutronix.de  |
Vertretung West/Dortmund         | Phone: +49-231-2826-924     |
Amtsgericht Hildesheim, HRA 2686 | Fax:   +49-5121-206917-5555 |

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