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

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Message-ID: <87tvi2juh4.fsf@linux.intel.com>
Date:   Mon, 21 Jan 2019 10:16:55 +0200
From:   Felipe Balbi <felipe.balbi@...ux.intel.com>
To:     Zeng Tao <prime.zeng@...ilicon.com>
Cc:     Zeng Tao <prime.zeng@...ilicon.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        linux-usb@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] usb: dwc3: gadget: issue a stop command for ISOC endpoint


Hi,

Zeng Tao <prime.zeng@...ilicon.com> writes:
> For ISOC transfers, if there is no available data for a period, we need
> to stop the transfer by issue a stop command, otherwise, all the
> upcoming transfers will started by update transfer command, and will be
> dropped with MISS ISOC errors.

We, actually, have code to handle missed isoc errors now. Have you
tested with that applied? Which kernel are you using? Can you share
tracepoints captured with v5.0-rc3?

-- 
balbi

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