From mboxrd@z Thu Jan 1 00:00:00 1970 From: Greg KH Subject: Re: [PATCH v2 01/22] docs: fpga: add a document for Intel FPGA driver overview Date: Tue, 18 Jul 2017 07:22:28 +0200 Message-ID: <20170718052228.GA10631@kroah.com> References: <1498441938-14046-1-git-send-email-hao.wu@intel.com> <1498441938-14046-2-git-send-email-hao.wu@intel.com> <20170713042520.GC28569@hao-dev> <20170714235914.GA17169@eluebber-mac02.jf.intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Content-Disposition: inline In-Reply-To: Sender: linux-api-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: Alan Tull Cc: "Luebbers, Enno" , Wu Hao , Moritz Fischer , linux-fpga-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-kernel , linux-api-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, "Kang, Luwei" , "Zhang, Yi Z" , Xiao Guangrong List-Id: linux-api@vger.kernel.org On Mon, Jul 17, 2017 at 03:14:29PM -0500, Alan Tull wrote: > > Also, we're thinking that some operations require that you first "acquire > > ownership" of the respective device, which I believe maps more easily to > > open() and ioctls than sysfs. > > > > Thanks > > - Enno > > Yes, sysfs doesn't implement open/close so there's no clean way to > have one thing in userspace that owns the interface. It's a shame. No, that was by design :)