linux-kernel - Re: [PATCH 3/3] sparc/uapi: Add definition of TIOC[SG]RS485

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Date:	Tue, 09 Sep 2014 11:26:40 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	ricardo.ribalda@...il.com
Cc:	sparclinux@...r.kernel.org, linux-kernel@...r.kernel.org,
	linux-serial@...r.kernel.org
Subject: Re: [PATCH 3/3] sparc/uapi: Add definition of TIOC[SG]RS485

From: Ricardo Ribalda Delgado <ricardo.ribalda@...il.com>
Date: Tue,  9 Sep 2014 20:08:30 +0200

> diff --git a/arch/sparc/include/uapi/asm/ioctls.h b/arch/sparc/include/uapi/asm/ioctls.h
> index 897d172..4e1c5da 100644
> --- a/arch/sparc/include/uapi/asm/ioctls.h
> +++ b/arch/sparc/include/uapi/asm/ioctls.h
> @@ -24,6 +24,8 @@
>  #define TIOCGPKT	_IOR('T', 0x38, int) /* Get packet mode state */
>  #define TIOCGPTLCK	_IOR('T', 0x39, int) /* Get Pty lock state */
>  #define TIOCGEXCL	_IOR('T', 0x40, int) /* Get exclusive mode state */
> +#define TIOCGRS485	0x542E
> +#define TIOCSRS485	0x542F

Please follow the ioctl numbering scheme used by the particular
architecture UAPI file you are editing.

Since Sparc here is using incrementing _IO*() values, including the type
for the object passed in/out of the ioctl, you should do similarly for
TIOC{G,S}RS485.
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