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From: Bin Liu <b-liu@ti.com>
To: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Cc: Paul Elder <paul.elder@ideasonboard.com>,
	<kieran.bingham@ideasonboard.com>, <gregkh@linuxfoundation.org>,
	<linux-usb@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
	<balbi@kernel.org>, <stern@rowland.harvard.edu>, <rogerq@ti.com>
Subject: Re: [PATCH 0/6] usb: gadget: add mechanism to asynchronously validate data stage of ctrl out request
Date: Thu, 18 Oct 2018 07:40:03 -0500	[thread overview]
Message-ID: <20181018124003.GD8763@uda0271908> (raw)
In-Reply-To: <1944130.9sTDClXDAS@avalon>

Hi Laurent,

On Thu, Oct 18, 2018 at 02:42:29AM +0300, Laurent Pinchart wrote:
> Hi Bin,
> 
> On Thursday, 11 October 2018 22:31:42 EEST Bin Liu wrote:
> > On Tue, Oct 09, 2018 at 10:48:57PM -0400, Paul Elder wrote:
> > > This patch series adds a mechanism to allow asynchronously validating
> > > the data stage of a control out request, and for stalling or suceeding
> > > the request accordingly. This mechanism is implemented for MUSB, and is
> > > used by UVC. At the same time, UVC packages the setup stage and data
> > 
> > Why is this for MUSB only? Other UDC such as DWC3 doesn't need this?
> 
> Unfortunately, the asynchronous control request data stage validation 
> mechanism must be implemented by every UDC. This patch series only addresses 
> MUSB as this is Paul's main test platform. Once the core patches get reviewed 
> and the API accepted (possibly in a modified form), we plan to update the DWC2 
> and DWC3.

Thanks for the explanation.

Regards,
-Bin.

      reply	other threads:[~2018-10-18 12:40 UTC|newest]

Thread overview: 33+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-10-10  2:48 [PATCH 0/6] usb: gadget: add mechanism to asynchronously validate data stage of ctrl out request Paul Elder
2018-10-10  2:48 ` [PATCH 1/6] usb: uvc: include videodev2.h in g_uvc.h Paul Elder
2018-10-10 13:42   ` Laurent Pinchart
2018-10-10  2:48 ` [PATCH 2/6] usb: gadget: uvc: enqueue usb request in setup handler for control OUT Paul Elder
2018-10-10  2:49 ` [PATCH 3/6] usb: gadget: uvc: package setup and data for control OUT requests Paul Elder
2018-10-10  2:49 ` [PATCH 4/6] usb: gadget: add functions to signal udc driver to delay status stage Paul Elder
2018-10-11 16:10   ` Bin Liu
2018-10-17 23:45     ` Laurent Pinchart
2018-10-18 12:46       ` Bin Liu
2018-10-18 14:07       ` Alan Stern
2018-11-01 23:40         ` Paul Elder
2018-11-02 12:44           ` Laurent Pinchart
     [not found]             ` <87h8gzy5y7.fsf@linux.intel.com>
2018-11-02 14:36               ` Laurent Pinchart
2018-11-02 16:18                 ` Alan Stern
2018-11-02 17:10                   ` Laurent Pinchart
2018-11-02 19:46                     ` Alan Stern
2018-11-06 11:24                       ` Felipe Balbi
2018-11-06 15:01                         ` Alan Stern
2018-11-07  6:53                           ` Felipe Balbi
2018-11-06 11:17                     ` Felipe Balbi
2018-11-06 14:51                       ` Alan Stern
2018-11-07  7:00                         ` Felipe Balbi
2018-11-07 16:23                           ` Alan Stern
2018-12-14  3:47                             ` Paul Elder
2018-12-14 15:35                               ` Alan Stern
2018-10-10  2:49 ` [PATCH 5/6] usb: musb: gadget: implement send_response Paul Elder
2018-10-11 16:07   ` Bin Liu
2018-10-31 23:26     ` Paul Elder
2018-10-10  2:49 ` [PATCH 6/6] usb: gadget: uvc: allow ioctl to send response in status stage Paul Elder
2018-10-10 12:57 ` [PATCH 0/6] usb: gadget: add mechanism to asynchronously validate data stage of ctrl out request Laurent Pinchart
2018-10-11 19:31 ` Bin Liu
2018-10-17 23:42   ` Laurent Pinchart
2018-10-18 12:40     ` Bin Liu [this message]

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