hi all: 2011/1/12 Alan Stern <stern@xxxxxxxxxxxxxxxxxxx>: > On Wed, 12 Jan 2011, loody wrote: > >> Is it possible for capturing all the content of "async" to a file when >> I plug in some mass storage device such that I can analyze the qhs. > > Just copy the "async" file to another file. That will give you a > snapshot. There is no way to track all the changes that happen over > time. If you want a more detailed view of what ehci-hcd is doing, you > have to add your own debugging statements. > I use usb mon to capture the iso and interrupt log. But I cannot quite understand the message mean. 87230124 328084000 S Ii:1:007:1 -150:1 1025 < 87230124 328084000 C Ii:1:007:1 0:1 7 = 0e05010a fc0001 8719dd00 530320000 S Zo:2:003:1 -150:1:0 8 -18:0:176 -18:176:176 -18:352:176 -18:528:176 -18:704:176 1408 D 8719dd00 530336000 C Zo:2:003:1 0:1:20:0 8 0:0:176 0:176:176 0:352:176 0:528:176 0:704:176 1408 > what does the "-150:1" and " -150:1:0 8 -18:0:176 -18:176:176" mean? I guess that maybe status and interval, where I can find the definition table in driver to check it? appreciate your help :) miloody -- Regards, -- 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