From mboxrd@z Thu Jan 1 00:00:00 1970 From: ynvich@gmail.com (Sergei Ianovich) Date: Thu, 17 Apr 2014 00:06:40 +0400 Subject: [PATCH v4 21/21] misc: support for I-8024 in LP-8x4x In-Reply-To: <20140416205644.396709aa@alan.etchedpixels.co.uk> References: <1397668411-27162-7-git-send-email-ynvich@gmail.com> <1397668667-27328-1-git-send-email-ynvich@gmail.com> <1397668667-27328-15-git-send-email-ynvich@gmail.com> <20140416193949.47f4ea68@alan.etchedpixels.co.uk> <9eb6a7ac-e8c0-4c05-8f8a-e047d2614cba@email.android.com> <20140416205644.396709aa@alan.etchedpixels.co.uk> Message-ID: To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org One Thousand Gnomes 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.