Hi, On Tue, Feb 25, 2014 at 05:48:17PM -0800, Neil Zhang wrote: > > > > > > > > Hardware zlt will try to send the zero length packet > > > > > > > > automatically when the data transferd is multiple times of > > > > > > > > max packet, this will cause issues on Windows. > > > > > > > > So let's disable HW zlt by default. > > > > > > > > > > > > > > Would you have description that what kinds of issue on Windows > > > > > > > if zlt is is selected? > > > > > > > > > > > > > > > > > > > Enumeration will fail. > > > > > > > > > > > > > > > > What causes enumeration fail, why it does not occur before? > > > > > > > > > A unexpected zero packet cause enumeration fail. > > > > It's not easy that the descriptor is actually 1024 bytes, so not > > > > easy to be found. > > > > > > > > > > Chipidea bug too? Does it follow ch 8.5.3.2 Variable-length Data Stage, USB > > 2.0 spec? > > > > wait, this is a chipidea core ? Why aren't you guys using the chipidea driver > > yet ? You need to switch over to that driver dude, we can't have duplicated > > code in the tree. > > > > I'm sorry, but I won't be taking this series, please use chipidea driver, it should > > be very simple to add a glue layer for your core to the chipidea driver. > > > > Yes, it use chipidea IP. > But the driver is earlier than the chipidea one and we use it for our > products. > So it may be not that easy to switch to chipidea driver due to the > stability. that's nonsense, the average chipidea glue layer is ~80 LOCs. You can write that in less than 2 hours and give it a try. We cannot have duplicate drivers in the tree and development effort *must* be shared. If you guys use the same IP, why wouldn't you use the same chipidea driver ? sorry, you didn't convince me. -- balbi
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