On Tue, Jul 27, 2010 at 12:40:32PM +0800, bradhuang wrote: > Dears, > > But in windows XP , > It is OK, webcam and mouse can work normally both. > Why?? I don't know, go ask the Windows developers :) Seriously, what kernel version are you testing? Have you tried the 2.6.34 release? This type of USB scheduling is known to be problematic on Linux, and has gotten a lot better over the past few releases. Patches to resolve any remaning issues are gladly accepted. thanks, greg k-h -- 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