linux-kernel - [PATCH 0/3] XRA1403,gpio - add XRA1403 gpio expander driver

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Message-ID: <HE1P101MB01884BDB83D25AE639A07396E60A0@HE1P101MB0188.NAMP101.PROD.OUTLOOK.COM>
Date:   Wed, 5 Apr 2017 12:46:58 +0000
From:   "Han, Nandor (GE Healthcare)" <nandor.han@...com>
To:     Linus Walleij <linus.walleij@...aro.org>
CC:     Alexandre Courbot <gnurou@...il.com>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        "linux-gpio@...r.kernel.org" <linux-gpio@...r.kernel.org>,
        "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: [PATCH 0/3] XRA1403,gpio - add XRA1403 gpio expander driver



> -----Original Message-----
> From: Linus Walleij [mailto:linus.walleij@...aro.org]
> Sent: 29 March 2017 04:51
> To: Han, Nandor (GE Healthcare) <nandor.han@...com>
> Cc: Alexandre Courbot <gnurou@...il.com>; Rob Herring <robh+dt@...nel.org>; Mark Rutland
> <mark.rutland@....com>; linux-gpio@...r.kernel.org; devicetree@...r.kernel.org; linux-kernel@...r.kernel.org
> Subject: EXT: Re: [PATCH 0/3] XRA1403,gpio - add XRA1403 gpio expander driver
> 

<snip>

> Do *NOT* use the sysfs for testing GPIO.
> This is being phased out.
> 
> Use the tools in tools/gpio/* so that you exercise the
> character device instead of the old deprecated ABI.
> 

Thanks Linus, really good and  helpful comments.
I agree that make more sense to test with tools/gpio/*.

> Yours,
> Linus Walleij