From mboxrd@z Thu Jan  1 00:00:00 1970
From: greg@kroah.com (Greg KH)
Date: Wed, 29 Oct 2014 10:40:37 +0800
Subject: Where to put the source of a DD of a custom hardware.
In-Reply-To: <CAENGNhduTUdGJB2c13JtCRTSbf_ugzStNpMMBRoMZbkk=b9SdA@mail.gmail.com>
References: <CAENGNhduTUdGJB2c13JtCRTSbf_ugzStNpMMBRoMZbkk=b9SdA@mail.gmail.com>
Message-ID: <20141029024037.GA7338@kroah.com>
To: kernelnewbies@lists.kernelnewbies.org
List-Id: kernelnewbies.lists.kernelnewbies.org

On Tue, Oct 28, 2014 at 03:58:40PM -0200, Raphael Philipe wrote:
> Hi,
> 
> I'm developing a device driver to drive a specific custom hardware,
> that is implemented in FPGA. Since it is an application specific
> device driver, where (in witch folder) should I put Its source in my
> local kernel source tree? Is there any guideline or best practice
> about it?
> 
> This device driver is basically a character device, that copies stuff
> from hardware to kernel space and then from user space.

Why not just use the UIO interface, which does not need a kernel driver
at all?  Why are you needing a char driver?

thanks,

greg k-h