On Fri, 9 Oct 2009, Alexey wrote: > I made traces with usbmon. > I can't found a bus with card reader and I got data from > /sys/kernel/debug/usb/usbmon/0u > Before that I unload all modules of my usb devices (and blacklist it): > uvcvideo > videodev > v4l1_compat > usbhid > hid > btusb > usb-storage Sorry it took a while to get back to you. > `cat /sys/kernel/debug/usb/usbmon/0u > 0u.out` was give no data at all. > It's normal because all modules uses usb unloaded. > After that I did `modprobe usb-storage` and `cat > /sys/kernel/debug/usb/usbmon/0u > new_0u.out`. The card reader had empty > slot at the moment. Still 5 sec I stopped logging. > Then I did `cat /sys/kernel/debug/usb/usbmon/0u > new_0u_pl_ej.out` and > inserted card and ejected it. After that stopped logging. You should leave the card in the slot for at least 10 seconds or so. hal checks every two seconds to see if a card has been inserted. The usbmon trace shows that no card was detected. > And after that I inserted card and did `cat > /sys/kernel/debug/usb/usbmon/0u > new_0u_rel_pl_ej.out` and in other > console `rmmod ehci-hcd && modprobe ehci-hcd`. Still 10 secs I ejected > flash card and stopped logging. This file shows that the card was detected and was working correctly. There should have been a message about it in the dmesg log. The usbmon trace shows that the card claims to hold about 7.8 GB. > I attached files new_0u.out, new_0u_pl_ej.out, new_0u_rel_pl_ej.out to > the message. 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
