On Mon, 22 Feb 2010, Anssi Hannula wrote: > > > If I additionally insert a one-second delay before the fd is closed, I > > > get this usbmon log: > > > http://stuff.onse.fi/gobi2000/gobi-regression5.mon.log > > > > > > The firmware upload is still unsuccessful. > > > > If I use the option driver instead of qcserial, the firmware upload is > > always successful (without any added delays needed). The usbmon log for > > that case can be found here: > > http://stuff.onse.fi/gobi2000/gobi-regression6.mon.log > > I installed 2.6.31.12 to get a usbmon log with qcserial before the regression > as well (without delays, upload successful): > http://stuff.onse.fi/gobi2000/gobi-regression7.mon.log The major difference between the logs is in the way the data get divided up into packets. In both the successful logs, there are sequences of bulk-OUT packets with lengths like: 44, 1, 15, 1, 13 where the unsuccessful transfer just has a single packet of length 74. Also, the successful transfers show a lot of bulk-IN traffic where the unsuccessful transfer doesn't have any. I don't know if that is relevant, however. No other differences stand out. Alan Stern -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
