From: Greg KH <greg@kroah.com>
To: Michael Grzeschik <mgr@pengutronix.de>
Cc: linux-usb@vger.kernel.org, balbi@kernel.org,
paul.elder@ideasonboard.com, kieran.bingham@ideasonboard.com,
nicolas@ndufresne.ca, laurent.pinchart@ideasonboard.com,
kernel@pengutronix.de, linux-media@vger.kernel.org
Subject: Re: [PATCH v7 0/7] usb: gadget: uvc: use configfs entries for negotiation and v4l2 VIDIOCS
Date: Fri, 8 Apr 2022 06:49:52 +0200 [thread overview]
Message-ID: <Yk++8L5ecHBQbmGt@kroah.com> (raw)
In-Reply-To: <20220407195350.GA11432@pengutronix.de>
On Thu, Apr 07, 2022 at 09:53:50PM +0200, Michael Grzeschik wrote:
> On Tue, Mar 15, 2022 at 03:33:49PM +0100, 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
>
> Cc: linux-media@vger.kernel.org
That does not actually get the full set of patches sent to the list :(
Please resend the whole series.
thanks,
greg k-h
prev parent reply other threads:[~2022-04-08 4:50 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-03-15 14:33 [PATCH v7 0/7] usb: gadget: uvc: use configfs entries for negotiation and v4l2 VIDIOCS Michael Grzeschik
2022-03-15 14:33 ` [PATCH v7 1/7] media: v4l: move helper functions for fractions from uvc to v4l2-common Michael Grzeschik
2022-03-15 14:33 ` [PATCH v7 2/7] media: uvcvideo: move uvc_format_desc to common header Michael Grzeschik
2022-03-15 14:33 ` [PATCH v7 3/7] usb: gadget: uvc: prevent index variables to start from 0 Michael Grzeschik
2022-03-15 14:33 ` [PATCH v7 4/7] usb: gadget: uvc: move structs to common header Michael Grzeschik
2022-03-15 14:33 ` [PATCH v7 5/7] usb: gadget: uvc: track frames in format entries Michael Grzeschik
2022-03-15 14:33 ` [PATCH v7 6/7] usb: gadget: uvc: add VIDIOC function Michael Grzeschik
2022-03-15 14:33 ` [PATCH v7 7/7] usb: gadget: uvc: add format/frame handling code Michael Grzeschik
2022-04-07 14:34 ` [PATCH v7 0/7] usb: gadget: uvc: use configfs entries for negotiation and v4l2 VIDIOCS Michael Grzeschik
2022-04-07 14:52 ` Greg KH
2022-04-07 19:53 ` Michael Grzeschik
2022-04-07 19:53 ` Michael Grzeschik
2022-04-08 4:49 ` Greg KH [this message]
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