Hello,
I have done some test, following your recommendation.
I booted into uboot.
Connected a USB stick.
usb start
usb tree
I could see the stick in the tree
removed the stick plugged in the mouse
usb reset
usb tree
nothing to see from the mouse
removed the mouse plugged in the stick
usb reset
usb tree
stick is back again
removed the stick
boot
plugged in the stick again and watched the output of "tail -f /var/log/messages"
stick is shown ( in short words )
removed the stick
saw the remove message in the messages
plugged in the stick again and it was again shown in the messages
Now the interresting thing:
plugged in the mouse
nothing happens
removed the mouse
nothing happens
And now plugged plugged in the stick again:
!! nothing happens !!
This is can be reproduced.
When I directly boot into linux the behaviour is the same, the usb stick works until I plug in the mouse than it seems as if the USB is dead.
When I plug in the mouse in uboot nothing happens but after disconnecting the mouse usb is still working.
So in both cases the behaviour is different, but the mouse nevers seems to work.
HTH
HoBa