i have a pendrive the work correctly when plugged directly in a port on the pc 
but dont start at all when i connect it in the hub of my usb keyboard (apple 
white kb). I have Ubuntu 6.10 (kernel 2.6.17).

Here my dmesg when connected to hub:
[ 7543.837101] usb 1-8.2: new full speed USB device using ohci_hcd and address 7
[ 7543.893559] usb 1-8.2: can't connect bus-powered hub to this port

directly on the pc:
[ 7567.507099] usb 2-10: new high speed USB device using ehci_hcd and address 6
[ 7567.579895] usb 2-10: configuration #1 chosen from 1 choice
[ 7567.579995] hub 2-10:1.0: USB hub found
[ 7567.580100] hub 2-10:1.0: 1 port detected
[ 7567.730993] usb 2-10.1: new high speed USB device using ehci_hcd and address 
7
[ 7567.783873] usb 2-10.1: configuration #1 chosen from 1 choice
[ 7567.857458] usbcore: registered new driver libusual
[ 7567.891448] Initializing USB Mass Storage driver...
[ 7567.891498] scsi4 : SCSI emulation for USB Mass Storage devices
[ 7567.891538] usb-storage: device found at 7
[ 7567.891540] usb-storage: waiting for device to settle before scanning
[ 7567.891547] usbcore: registered new driver usb-storage
[ 7567.891550] USB Mass Storage support registered.

Ps: on xp work perfectly when connected to kb, so its not an HW problem


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