linux-kernel - Re: [PATCH v4 21/21] misc: support for I-8024 in LP-8x4x

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Message-ID: <f36fdc97-7cc3-49a8-9643-f7096defd829@email.android.com>
Date:	Thu, 17 Apr 2014 00:06:40 +0400
From:	Sergei Ianovich <ynvich@...il.com>
To:	One Thousand Gnomes <gnomes@...rguk.ukuu.org.uk>
CC:	linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
	Randy Dunlap <rdunlap@...radead.org>,
	Arnd Bergmann <arnd@...db.de>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	linux-doc@...r.kernel.org
Subject: Re: [PATCH v4 21/21] misc: support for I-8024 in LP-8x4x

One Thousand Gnomes <gnomes@...rguk.ukuu.org.uk> wrote:
>> I've closely examined a dozen or two of drivers, but of them was
>close enough for I-8024 in terms of speed. Its channel takes 0.1 us to
>set up from kernel. Real user space programs can setup all for channels
>in 1 us with interface provided by this patch. That's said I don't have
>data on time that it takes for output to stabilize at the desired
>levels.
>> 
>> I've chosen drivers/misc as a location that looked to provide the
>shortest path for my driver to land. The driver needs support for the
>bus, and here it can be in one driver.
>> 
>> It would be great to have some more detailed input on this issue.
>
>IIO is where we are trying to standardise all the industrial control
>devices. There is stuff in places like misc for historical reasons.

Great. I'll rewrite the driver using IIO, but the bus issue needs to be settled first.

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