On Wed, Sep 07, 2011 at 05:44:37PM +0800, Andiry Xu wrote: > On Tue, 2011-09-06 at 19:33 -0400, Alan Stern wrote: > > > lsusb output > > > (bus 004 device 002 is supposed to be the VIA hub) > > > > > > Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub > > > Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub > > > Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub > > > Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub > > > Bus 001 Device 003: ID 0624:0291 Avocent Corp. > > > Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub > > > Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub > > > Bus 004 Device 002: ID 2109:0810 > > > Bus 004 Device 003: ID 1058:0730 Western Digital Technologies, Inc. > > > > Shouldn't there be an entry listing bus 003 device 002 for the VIA > > hub's USB-2 component? > > > > Alan STern > > > > -- > > The hub's USB-2 component fails to initialize, so it does not show up in > lsusb. > > I wonder if this issue occur with hot plug? Or it can only be seen on > cold boot with the hub plugged in. I tried hotplugging a few times with no luck. Even after unplugging everything from the hub. Cheers, Don -- 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