On Fri, 1 Jul 2011, Sarah Sharp wrote: > > For one thing, we need to store along with the TT a record of how much > > time has been committed in each frame. If a hub has per-port TTs, we > > need this information for each port. > > I'm not sure xHCI can make use of that information, since it's just > blindly reserving the max bandwidth for each TT with active FS/LS > periodic endpoints. You'll probably tell me to go read the code... but what happens if the user plugs a second device into a TT that already has some active periodic endpoints? Since the full bandwidth of the TT is already reserved, the periodic endpoints of the second device wouldn't be accessible. 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
