VHUB didn't work on AST2500

[xiuzhi]

Hi all,
 I am porting obmc-ikvm to my hardware platform. The host screen can be seen by vncviewer , but the mouse and keyboard didn't work on AST2500
. Only the keys ';' , 'Enter',  '1','2','3','4' work. others keyinput will deadlock the host screen .
The kernel error log: 
[   99.326586] configfs-gadget gadget: high-speed config #1: c 
[   99.403704] aspeed_vhub 1e6a0000.usb-vhub: status direction mismatch         
[   99.492831] aspeed_vhub 1e6a0000.usb-vhub: status direction mismatch 
The kernel version is : video-dev5,
commit 2acbc35adcfe15971b701770e1105276a18da9f7


Who can give me some suggestions to  debug it?
xiuzhi
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.ozlabs.org/pipermail/openbmc/attachments/20181024/b48fbd89/attachment.html>