how to list all usb buses and it's branches

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http://www.linuxquestions.org – hello I wanted to know how can I find out how many usbs my device has in command line.I used some but they just show me the usb buses without their sub usb branches: Quote: lsusb -t usb-devices lshal | grep usb.linux.sysfs_path none of the above show me the complete usb bus and its sub usb's. how can I see that? (HowTos)