Message-ID: <003001cb5ecd$97577930$66f8800a@maildom.okisemi.com>
Date:	Tue, 28 Sep 2010 14:25:36 +0900
From:	"Masayuki Ohtake" <masa-korg@....okisemi.com>
To:	"Mike Frysinger" <vapier@...too.org>
Cc:	"Mark Brown" <broonie@...nsource.wolfsonmicro.com>,
	"Andrew Morton" <akpm@...ux-foundation.org>,
	"Samuel Ortiz" <sameo@...ux.intel.com>,
	"Randy Dunlap" <randy.dunlap@...cle.com>,
	"Alek Du" <alek.du@...el.com>, <richard.rojfors@...ean-labs.com>,
	<meego-dev@...go.com>,
	"ML linux-kernel" <linux-kernel@...r.kernel.org>,
	"Qi" <qi.wang@...el.com>, <andrew.chih.howe.khor@...el.com>,
	<gregkh@...e.de>, "Yong Y" <yong.y.wang@...el.com>,
	"Tomoya MORINAGA" <morinaga526@....okisemi.com>,
	<joel.clark@...el.com>, <margie.foster@...el.com>,
	<kok.howg.ewe@...el.com>
Subject: Re: [MeeGo-Dev][PATCH] Topcliff: Update PCH_GPIO driver to 2.6.35

Hi Mike,

> find out what range of GPIO numbers your driver is using and use those
> instead of "1"
I have attached a part of our source file.

Since I set "ngpio=12",
I guess 0-11 can be used, thus, "echo 1 > export" should be success too.
Is this true ?

Thanks, Ohtake(OKISemi)
----- Original Message ----- 
From: "Mike Frysinger" <vapier@...too.org>
To: "Masayuki Ohtake" <masa-korg@....okisemi.com>
Cc: "Mark Brown" <broonie@...nsource.wolfsonmicro.com>; "Andrew Morton" <akpm@...ux-foundation.org>; "Samuel Ortiz"
<sameo@...ux.intel.com>; "Randy Dunlap" <randy.dunlap@...cle.com>; "Alek Du" <alek.du@...el.com>;
<richard.rojfors@...ean-labs.com>; <meego-dev@...go.com>; "ML linux-kernel" <linux-kernel@...r.kernel.org>; "Qi"
<qi.wang@...el.com>; <andrew.chih.howe.khor@...el.com>; <gregkh@...e.de>; "Yong Y" <yong.y.wang@...el.com>; "Tomoya
MORINAGA" <morinaga526@....okisemi.com>; <joel.clark@...el.com>; <margie.foster@...el.com>; <kok.howg.ewe@...el.com>
Sent: Tuesday, September 28, 2010 2:02 PM
Subject: Re: [MeeGo-Dev][PATCH] Topcliff: Update PCH_GPIO driver to 2.6.35


On Tue, Sep 28, 2010 at 00:57, Masayuki Ohtake wrote:
> I have modified for GPIO standard I/F referring other accepted GPIO driver.

no idea what this driver is

> According to Documentation/gpio.txt,
> I tried to create GPIO node like below.
>
> [root@...alhost gpio]# ls
> export gpiochip244 unexport
> [root@...alhost gpio]# echo 1 > export
> bash: echo: write error: Invalid argument
> [root@...alhost gpio]#
>
> But it fails.

find out what range of GPIO numbers your driver is using and use those
instead of "1"
-mike


begin 666 pch_gpio.c
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D#0H):V9R964H8VAI<"D[#0H)<F5T=7)N(')E=#L-"GT-"@T*
`
end

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