> > Maybe the problem isn't in your program but rather in the hub. You > should test your program with a different type of hub. > > Alan Stern > > Thanks for your point! I did the tests on two Belkin hubs cascaded the same as the TI hub, for 24 hours they are still running OK with the testing. But our customer reported that he also used Alcor Micro Corp hubs and he still get the hangup. So it seems some hubs are good citizens and others are bad, as people are :-) I'm going to suffer this... Cory -- 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