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Date:   Thu, 11 Oct 2018 14:31:42 -0500
From:   Bin Liu <b-liu@ti.com>
To:     Paul Elder <paul.elder@ideasonboard.com>
CC:     <laurent.pinchart@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
Message-ID: <20181011193142.GC8763@uda0271908>
Mail-Followup-To: Bin Liu <b-liu@ti.com>,
        Paul Elder <paul.elder@ideasonboard.com>,
        laurent.pinchart@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
References: <20181010024903.1633-1-paul.elder@ideasonboard.com>
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Hi,

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?

Regards,
-Bin.