linux-kernel - Re: [PATCH] USB: serial: ark3116.c: Remove unused TIOCSSERIAL case from ioctl

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Date:   Wed, 13 Dec 2017 11:17:28 +0100
From:   Oliver Neukum <oneukum@...e.com>
To:     Mikhail Zaytsev <flashed@...l.ru>, Johan Hovold <johan@...nel.org>
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        linux-kernel@...r.kernel.org, linux-usb@...r.kernel.org
Subject: Re: [PATCH] USB: serial: ark3116.c: Remove unused TIOCSSERIAL case
 from ioctl

Am Mittwoch, den 13.12.2017, 12:30 +0300 schrieb Mikhail Zaytsev:
> +#define RS232_VENDOR 0x6547
> +#define RS232_PRODUCT 0x0232
> +#define IRDA_VENDOR 0x18ec
> +#define IRDA_PRODUCT 0x3118
>  
>  /* usb timeout of 1 second */
>  #define ARK_TIMEOUT 1000
>  
>  static const struct usb_device_id id_table[] = {
> -       { USB_DEVICE(0x6547, 0x0232) },
> -       { USB_DEVICE(0x18ec, 0x3118) },         /* USB to IrDA adapter */
> +       { USB_DEVICE(RS232_VENDOR, RS232_PRODUCT) },
> +       { USB_DEVICE(IRDA_VENDOR, IRDA_PRODUCT) },  /* USB to IrDA adapter */

Hi,

what is the purpose of this change? It just makes it harder to grep.
The constants are arbitrary and they are clearly device IDs.

        Regards
                Oliver