linux-kernel - Re: [PATCH] Documentation about RS485 serial communications

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Date:	Wed, 11 Aug 2010 13:20:37 -0700 (PDT)
From:	Randy Dunlap <randy.dunlap@...cle.com>
To:	<claudio@...dence.eu.com>
Cc:	<alan@...rguk.ukuu.org.uk>, <jiri.prchal@...ignal.cz>,
	<rick@....org>, <akpm@...ux-foundation.org>,
	<ryan@...ewatersys.com>, <w.sang@...gutronix.de>,
	<rmk@....linux.org.uk>, <nicolas.ferre@...el.com>, <br@...net.de>,
	<gregkh@...e.de>, <Sebastian.Heutling@...-ing.de>,
	<hskinnemoen@...el.com>, <linux-arm-kernel@...ts.infradead.org>,
	<elektrolot@...pl>, <mattheis@...a.de>,
	<linux-kernel@...r.kernel.org>, <john@...nlinx.com>,
	<phdm@...qel.be>
Subject: Re: [PATCH] Documentation about RS485 serial communications

----- Original Message -----
From: claudio@...dence.eu.com
To: randy.dunlap@...cle.com
Sent: Wednesday, August 11, 2010 12:59:08 PM GMT -08:00 US/Canada Pacific
Subject: Re: [PATCH] Documentation about RS485 serial communications

Hi Randy,

	thank you for the feedback.

[...]

> 
> TIOC[SG]RS485 are #defined in <asm-generic/ioctls.h>, so
> #include <asm-generic/ioctls.h>
> here and/or below (in userspace program).
> 

I noticed that for some architectures (e.g., cris) these ioctls are defined also in arch/cris/include/asm/ioctls.h, and with different values with respect to the values defined on asm-generic/ioctls.h.

Therefore, I wasn't completely sure that the values defined in asm-generic are being used in every driver...
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Oh, OK, I see.  Thanks for the info.

~Randy
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