Re: [patch 0/7] Add usb root debugfs directory and move the USB subsystems to use it

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On Friday 24 April 2009, greg@xxxxxxxxx wrote:
> Everyone else, any objection to these changes?

Nah ... I can cope with that, I think.  But this obsoletes
Randy's old "usbtree" script:

 http://www.linux-usb.org/usbtree

which gives a pleasant concise summary of what's
connected, e.g.

/: Bus 02.Port 1: Dev 1, Class=root_hub, Drv=musb-hcd/1p, 480M
    |_ Port 1: Dev 8, If 0, Prod=USB2.0 Hub Controller, Class=hub, Drv=hub/4p, 480M
        |_ Port 2: Dev 9, If 0, Prod=DSB-650TX USB ESB Ethe, Class=>ifc, Drv=pegasus, 12M
        |_ Port 4: Dev 10, If 0, Prod=Storage Media, Class=stor., Drv=usb-storage, 480M
/: Bus 01.Port 1: Dev 1, Class=root_hub, Drv=ehci_hcd/3p, 480M

Of course the obvious fix will be to have that use
/sys/kernel/debug/usb/devices ... but now that'll
only work if debugfs is there.

So I'd like to see someone volunteer to update that
script to work using just sysfs.  Or maybe take over
usbutils and make some "lsusb" option do that.

- Dave



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