Hi, "Zengtao (B)" <prime.zeng@xxxxxxxxxxxxx> writes: >>-----Original Message----- >>From: Felipe Balbi [mailto:felipe.balbi@xxxxxxxxxxxxxxx] >>Sent: Monday, January 21, 2019 4:17 PM >>To: Zengtao (B) <prime.zeng@xxxxxxxxxxxxx> >>Cc: Zengtao (B) <prime.zeng@xxxxxxxxxxxxx>; Greg Kroah-Hartman >><gregkh@xxxxxxxxxxxxxxxxxxx>; linux-usb@xxxxxxxxxxxxxxx; >>linux-kernel@xxxxxxxxxxxxxxx >>Subject: Re: [PATCH] usb: dwc3: gadget: issue a stop command for ISOC >>endpoint >> >>* PGP Signed by an unknown key >> >> >>Hi, >> >>Zeng Tao <prime.zeng@xxxxxxxxxxxxx> 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? >> > > Not v5.0-rc3, but I tested it based on 4.9 with backported dwc3 driver. And with > UVC application, it's very easy to reproduce it. Ok, so it could be that you missed patches while backporting, right? How can I reproduce this? What do I need? Care to give detailed instructions? -- balbi
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