From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 995DFC38145 for ; Wed, 7 Sep 2022 14:10:01 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229677AbiIGOKA (ORCPT ); Wed, 7 Sep 2022 10:10:00 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:35882 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229503AbiIGOJ7 (ORCPT ); Wed, 7 Sep 2022 10:09:59 -0400 Received: from ams.source.kernel.org (ams.source.kernel.org [145.40.68.75]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id C12471A07F; Wed, 7 Sep 2022 07:09:58 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ams.source.kernel.org (Postfix) with ESMTPS id 0CD6BB81CB3; Wed, 7 Sep 2022 14:09:57 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 326E2C433D7; Wed, 7 Sep 2022 14:09:55 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1662559795; bh=K/KsIfvrFq9SzocNl8CKHN2GWRmhpf37njgbFoR7Cww=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=mw1dcaOwgOalP8H794ETn2moK1XTstJzt19Pcudq76GPfrG6M9T+pPNp3I835U1gD 0f8UUfq6c5If/JVG62GzP5NMX1VD2Q1JM1Imvn9m5w+EOQ9fUnkZk2Mqs/CPahC5pC u7I8DXitY8+LSqjYlDsZcLk2h/bhrDBIIiLkw9A8= Date: Wed, 7 Sep 2022 16:09:52 +0200 From: Greg KH To: Michael Grzeschik Cc: linux-usb@vger.kernel.org, linux-media@vger.kernel.org, balbi@kernel.org, laurent.pinchart@ideasonboard.com, paul.elder@ideasonboard.com, kernel@pengutronix.de, nicolas@ndufresne.ca, kieran.bingham@ideasonboard.com Subject: Re: [RESEND v7 0/4] usb: gadget: uvc: use configfs entries for negotiation and v4l2 VIDIOCS Message-ID: References: <20220608105748.139922-1-m.grzeschik@pengutronix.de> <20220907140341.GC18739@pengutronix.de> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20220907140341.GC18739@pengutronix.de> Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org On Wed, Sep 07, 2022 at 04:03:41PM +0200, Michael Grzeschik wrote: > On Wed, Sep 07, 2022 at 03:28:54PM +0200, Greg KH wrote: > > On Wed, Jun 08, 2022 at 12:57:44PM +0200, Michael Grzeschik wrote: > > > This series improves the uvc video gadget by parsing the configfs > > > entries. With the configfs data, the driver now is able to negotiate the > > > format with the usb host in the kernel and also exports the supported > > > frames/formats/intervals via the v4l2 VIDIOC interface. > > > > > > The uvc userspace stack is also under development. One example is an generic > > > v4l2uvcsink gstreamer elemnt, which is currently under discussion. [1] > > > > > > [1] https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/1304 > > > > > > With the libusbgx library [1] used by the gadget-tool [2] it is now also > > > possible to fully describe the configfs layout of the uvc gadget with scheme > > > files. > > > > > > [2] https://github.com/linux-usb-gadgets/libusbgx/pull/61/commits/53231c76f9d512f59fdc23b65cd5c46b7fb09eb4 > > > > > > [3] https://github.com/linux-usb-gadgets/gt/tree/master/examples/systemd > > > > > > The bigger picture of these patches is to provide a more versatile interface to > > > the uvc gadget. The goal is to simply start a uvc-gadget with the following > > > commands: > > > > > > $ gt load uvc.scheme > > > $ gst-launch v4l2src ! v4l2uvcsink > > > > v4l developers, given a lack of review response to this series, I'm > > assuming that you all have no objection to this series and I can take it > > through my usb-next tree. > > Since this will not apply anymore, I just send v8 with some minor > changes. Thanks, I'll take that series now. greg k-h