From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from mx3.redhat.com (mx3.redhat.com [172.16.48.32]) by int-mx1.corp.redhat.com (8.13.1/8.13.1) with ESMTP id m26KCfVj016609 for ; Thu, 6 Mar 2008 15:12:41 -0500 Received: from smtp8-g19.free.fr (smtp8-g19.free.fr [212.27.42.65]) by mx3.redhat.com (8.13.8/8.13.8) with ESMTP id m26KC86b015992 for ; Thu, 6 Mar 2008 15:12:08 -0500 Message-ID: <47D05022.2070207@free.fr> Date: Thu, 06 Mar 2008 21:12:18 +0100 From: Thierry Merle MIME-Version: 1.0 To: Laurent Pinchart References: <1202916257-10421-1-git-send-email-jirislaby@gmail.com> <47CC365B.8010003@free.fr> <200803042350.55996.laurent.pinchart@skynet.be> In-Reply-To: <200803042350.55996.laurent.pinchart@skynet.be> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 8bit Cc: video4linux-list@redhat.com, Jiri Slaby Subject: Re: [RFC 1/1] v4l2_extension: helper daemon commands passing List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: video4linux-list-bounces@redhat.com Errors-To: video4linux-list-bounces@redhat.com List-ID: Laurent Pinchart a écrit : > On Monday 03 March 2008, Thierry Merle wrote: > >> Jiri Slaby a écrit : >> >>> Here I would like to know if the the commands passing interface to the >>> helper daemon introduced in this patch is OK, or alternatively propose >>> some other idea ;). >>> >> I have committed your patch as is >> http://linuxtv.org/hg/~tmerle/v4l2_extension/ >> Now will begin a driver enhancement. I will do that on usbvision because >> I know it. >> The first step will be to extend the supported video formats (2 >> sub-steps: 1-just enable hardware pixel format capabilities in >> usbvision, 2-allow the helper daemon to extend usbvision pixel format >> capabilities). >> > > I haven't followed v4l2_extension development closely, so I'm a bit puzzled by > this. Are the modifications you made to the usbvision module for testing > purpose only ? My understanding of v4l2_extension is that it should work > completely transparently and must not require any change to v4l2 drivers. > > In fact I meant remove from usbvision the software decompression algorithm in order to put it in the helper daemon. I will restrict the list of supported pixel formats to the ones that the hardware can output without software decompression. I hope that the sole modification for a standard base driver will be the add of v4l2ext_register/v4l2ext_unregister calls. > Best regards, > > Laurent Pinchart > > Cheers, Thierry -- video4linux-list mailing list Unsubscribe mailto:video4linux-list-request@redhat.com?subject=unsubscribe https://www.redhat.com/mailman/listinfo/video4linux-list