On Fri, Apr 23, 2010 at 03:05:14PM -0700, Sarah Sharp wrote: > On Fri, Apr 23, 2010 at 05:34:14PM -0400, Alan Stern wrote: > > On Fri, 23 Apr 2010, Sarah Sharp wrote: > > > > > > Does this look okay to you? I don't have any way to test it. > > > > > > Yes and no. Everything seems to behave properly with all the USB > > > devices I have; the I can read and write to the USB 3.0 hard drives, > > > etc. (The one thing I don't have is a USB 3.0 device that has > > > descriptors between the SuperSpeed Endpoint Companion Descriptor and the > > > next Endpoint Descriptor, like a UAS device would have). > > > > > > However, some devices are missing from the lsusb output, which is very > > > strange. Specifically, the roothub is always missing, and any hubs > > > directly connected to it disappear after a device has been plugged into > > > them. Hubs further up the tree do not disappear from the lsusb output. > > > I think this might be related to the fact that the roothub doesn't have > > > a SuperSpeed Endpoint Companion Descriptor. > > > > Very weird indeed. What shows up in /sys/kernel/debug/usb/devices? > > The USB devices show up fine there. Here's with the roothub and just a HS hub: > > sarah@xanatos:~$ lsusb > Bus 008 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub > Bus 007 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub > Bus 006 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub > Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub > Bus 004 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub > Bus 003 Device 003: ID 0a5c:2145 Broadcom Corp. > Bus 003 Device 002: ID 08ff:2810 AuthenTec, Inc. > Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub > Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub > Bus 001 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub > sarah@xanatos:~$ ls /sys/bus/usb/devices/ > 1-0:1.0 3-0:1.0 3-1:1.0 3-2:1.0 3-2:1.2 4-0:1.0 6-0:1.0 8-0:1.0 usb1 usb3 usb5 usb7 usb9 > 2-0:1.0 3-1 3-2 3-2:1.1 3-2:1.3 5-0:1.0 7-0:1.0 9-0:1.0 usb2 usb4 usb6 usb8 > sarah@xanatos:~$ ls /sys/bus/usb/devices/usb9/ > 9-0:1.0 avoid_reset_quirk bDeviceProtocol bMaxPower configuration devpath idVendor product speed version > 9-3 bcdDevice bDeviceSubClass bNumConfigurations descriptors driver manufacturer quirks subsystem > authorized bConfigurationValue bmAttributes bNumInterfaces dev ep_00 maxchild remove uevent > authorized_default bDeviceClass bMaxPacketSize0 busnum devnum idProduct power serial urbnum > > > If that looks all right then maybe the problem is somehow in lsusb. > > You can find out what lsusb is up to by doing > > > > echo 1 >/sys/module/usbcore/parameters/usbfs_snoop > > > > before starting the program and then looking at the dmesg log after it > > runs. > > Here's the output from dmesg when I run lsusb after executing that > command: Can you clone and build and run the program at: git://github.com/gregkh/lsusb.git and see if that shows anything different? It only looks at sysfs, not usbfs, and uses libudev to enumerate USB devices. 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
