From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Jiri Slaby" Subject: Re: [PATCH 1/1] Input: add sensable phantom driver Date: Tue, 13 Mar 2007 17:19:04 +0100 Message-ID: <4af2d03a0703130919nb4893b1ja9ec795dcf4bf53c@mail.gmail.com> References: <2460126662758025813@fi.muni.cz> <45EEEAA3.50009@gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: Content-Disposition: inline Sender: owner-linux-input@atrey.karlin.mff.cuni.cz List-Help: List-Owner: List-Post: List-Unsubscribe: To: Dmitry Torokhov Cc: Andrew Morton , linux-kernel@vger.kernel.org, linux-input@atrey.karlin.mff.cuni.cz, Greg KH , Anssi Hannula List-Id: linux-input@vger.kernel.org Cc: Anssi Hannula On 3/7/07, Dmitry Torokhov wrote: > On 3/7/07, Jiri Slaby wrote: > > Dmitry Torokhov napsal(a): > > > Hi Jiri, > > > > Hi. > > > > > On 3/7/07, Jiri Slaby wrote: > > >> add sensable phantom driver > > > ... > > > > > > General question - can this driver use force-feedback mecahnisms > > > already present in kernel instead of exporting raw datastream to > > > userspace. What are shortcomings of kernels force-feedback > > > implemenattion that make it insufficient for phantom? > > > > I didn't even think about it, sorry. Does any problem with rate about 2kHz come > > on your mind before I'll try to rewrite it? > > No, not really. Hmm, after going through input and ff layer, I figured out, that it's possible to pass only a direction to constant effect. I think, there is no possibility to pass 3D force (or vector) to the ff layer, isn't it? thanks, -- http://www.fi.muni.cz/~xslaby/ Jiri Slaby faculty of informatics, masaryk university, brno, cz e-mail: jirislaby gmail com, gpg pubkey fingerprint: B674 9967 0407 CE62 ACC8 22A0 32CC 55C3 39D4 7A7E