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

[Han, Nandor (GE Healthcare)]

> -----Original Message-----
> From: Linus Walleij [mailto:linus.walleij@xxxxxxxxxx]
> Sent: 29 March 2017 04:51
> To: Han, Nandor (GE Healthcare) <nandor.han@xxxxxx>
> Cc: Alexandre Courbot <gnurou@xxxxxxxxx>; Rob Herring <robh+dt@xxxxxxxxxx>; Mark Rutland
> <mark.rutland@xxxxxxx>; linux-gpio@xxxxxxxxxxxxxxx; devicetree@xxxxxxxxxxxxxxx; linux-kernel@xxxxxxxxxxxxxxx
> 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