linux-kernel - RE: [PATCH] usb: dwc3: gadget: issue a stop command for ISOC endpoint

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Message-ID: <878svys0cq.fsf@linux.intel.com>
Date:   Thu, 25 Apr 2019 16:03:49 +0300
From:   Felipe Balbi <felipe.balbi@...ux.intel.com>
To:     "Zengtao \(B\)" <prime.zeng@...ilicon.com>
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        "linux-usb\@vger.kernel.org" <linux-usb@...r.kernel.org>,
        "linux-kernel\@vger.kernel.org" <linux-kernel@...r.kernel.org>,
        Laurent Pinchart <laurent.pinchart@...asonboard.com>
Subject: RE: [PATCH] usb: dwc3: gadget: issue a stop command for ISOC endpoint


(please, avoid top-posting)

Hi,

"Zengtao (B)" <prime.zeng@...ilicon.com> writes:

> Hi balbi:
>
> I got this issue in the UVC application, and I think this issue still exist in the 
> latest dwc3 driver.
>
> And we should issue an stop command and the queue is empty when it's 
> ISOC transfer, otherwise we will end up with MISS ISOC error for all the 
> upcoming transfers.
>
> So I think you can test the UVC application with the latest driver.

right. Then what do I do? How do you load the driver, how do you start
the application? When do you plug the cable?

Please, provide exact steps so I can try to replicate the problem.

-- 
balbi

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