From owner-freebsd-usb@FreeBSD.ORG  Sun Dec 12 21:51:40 2010
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From: Hans Petter Selasky <hselasky@c2i.net>
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Date: Sun, 12 Dec 2010 22:51:58 +0100
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Subject: Re: static usb device configuration
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On Sunday 12 December 2010 19:49:24 Emanuel Haupt wrote:
> Is there any way I can make sure that the following device:
> 
> ugen1.3: <product 0x6001 vendor 0x0403> at usbus1, cfg=0 md=HOST spd=FULL
> (12Mbps) pwr=ON
> 
>   bLength = 0x0012
>   bDescriptorType = 0x0001
>   bcdUSB = 0x0200
>   bDeviceClass = 0x0000
>   bDeviceSubClass = 0x0000
>   bDeviceProtocol = 0x0000
>   bMaxPacketSize0 = 0x0008
>   idVendor = 0x0403
>   idProduct = 0x6001
>   bcdDevice = 0x0400
>   iManufacturer = 0x0000  <no string>
>   iProduct = 0x0000  <no string>
>   iSerialNumber = 0x0003  <Reader 195>
>   bNumConfigurations = 0x0001
> 
> Is always registered as:
> 
> /dev/usb/1.3.0

No, this is currently not possible unless you find the USB port which is 
enumerated first (I.E. has the lowest second number.)

--HPS