On Fri, 25 Jul 2014, Michael Welling wrote: > The plot thickens.... > > So if I run the above command before anything is plugged into the ports > the HUB disconnects. > > root@som3517:~# echo on > /sys/bus/usb/devices/1-1/power/control > [ 63.068839] usb 1-1: USB disconnect, device number 2 > > Here is the output of the usbmon output when running the above command: > root@som3517:/sys/kernel/debug/usb/usbmon# cat 1t > de382e40 3788886573 S Ci:001:00 s a3 00 0000 0001 0004 4 < > de382e40 3788890604 C Ci:001:00 0 4 = 07050000 > de382e40 3788892965 S Ci:001:00 s a3 00 0000 0002 0004 4 < > de382e40 3788893093 C Ci:001:00 0 4 = 00010000 > de382e40 3788894834 S Ci:001:00 s a3 00 0000 0003 0004 4 < > de382e40 3788894958 C Ci:001:00 0 4 = 00010000 > de7d92c0 3788896519 S Ii:001:01 -115 4 < > de382e40 3788898778 S Ci:001:00 s a3 00 0000 0001 0004 4 < > de382e40 3788900188 C Ci:001:00 0 4 = 07050000 > de382e40 3788902705 S Co:001:00 s 23 01 0002 0001 0000 0 > de382e40 3788905793 C Co:001:00 0 0 > de382e40 3788940998 S Ci:001:00 s a3 00 0000 0001 0004 4 < > de7d92c0 3788942065 C Ii:001:01 0 1 = 02 > de7d92c0 3788943013 S Ii:001:01 -115 4 < > de382e40 3788943145 C Ci:001:00 0 4 = 03050400 > de382e40 3788961031 S Co:001:00 s 23 01 0012 0001 0000 0 > de382e40 3788961175 C Co:001:00 0 0 > de382e40 3788961304 S Ci:002:00 s 80 00 0000 0000 0002 2 < > de382e40 3788965395 C Ci:002:00 -71 0 > de249040 3788966954 S Co:001:00 s 23 03 0004 0001 0000 0 > de249040 3788968362 C Co:001:00 0 0 > de249040 3789021103 S Ci:001:00 s a3 00 0000 0001 0004 4 < > de7d92c0 3789022194 C Ii:001:01 0 1 = 02 > de7d92c0 3789022226 S Ii:001:01 -115 4 < > de249040 3789023423 C Ci:001:00 0 4 = 01051200 > de249040 3789025010 S Co:001:00 s 23 03 0004 0001 0000 0 > de249040 3789026815 C Co:001:00 0 0 > de249040 3789230980 S Ci:001:00 s a3 00 0000 0001 0004 4 < > de249040 3789231111 C Ci:001:00 0 4 = 00010300 > de249040 3789232280 S Co:001:00 s 23 01 0014 0001 0000 0 > de249040 3789232404 C Co:001:00 0 0 > de249040 3789233056 S Co:001:00 s 23 01 0001 0001 0000 0 > de249040 3789235345 C Co:001:00 0 0 > de249040 3789236820 S Co:001:00 s 23 01 0001 0001 0000 0 > de249040 3789237201 C Co:001:00 0 0 > de249040 3789238180 S Co:001:00 s 23 01 0001 0001 0000 0 > de249040 3789238510 C Co:001:00 0 0 > de249040 3789240602 S Ci:001:00 s a3 00 0000 0001 0004 4 < > de249040 3789241661 C Ci:001:00 0 4 = 00010300 > de249040 3789242264 S Co:001:00 s 23 01 0010 0001 0000 0 > de249040 3789243921 C Co:001:00 0 0 > de249040 3789246540 S Co:001:00 s 23 01 0011 0001 0000 0 > de249040 3789246930 C Co:001:00 0 0 > de2490c0 3789283096 S Ci:001:00 s a3 00 0000 0001 0004 4 < > de2490c0 3789286255 C Ci:001:00 0 4 = 00010000 > de2490c0 3789330975 S Ci:001:00 s a3 00 0000 0001 0004 4 < > de2490c0 3789332606 C Ci:001:00 0 4 = 00010000 > de2490c0 3789371015 S Ci:001:00 s a3 00 0000 0001 0004 4 < > de2490c0 3789371146 C Ci:001:00 0 4 = 00010000 > de2490c0 3789410975 S Ci:001:00 s a3 00 0000 0001 0004 4 < > de2490c0 3789411097 C Ci:001:00 0 4 = 00010000 > de2490c0 3789450972 S Ci:001:00 s a3 00 0000 0001 0004 4 < > de2490c0 3789451081 C Ci:001:00 0 4 = 00010000 > de7d92c0 3789452462 C Ii:001:01 -2 0 > > Not sure what any of it means. Basically it means what you said above: the hub disconnected. I can't tell why. You'll have to ask someone who's familiar with the hardware on that board. 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
