fixating USB Storage

[bsalinux at gmail.com]

Hi,

How can I fix a USB storage device to always have the same device name
such as da9 irrespective of other da? devices present.

Here is the device
# usbconfig -u 4 -a 2 dump_info
ugen4.2: <USB Flash Drive USB 2.0> at usbus4, cfg=0 md=HOST spd=HIGH
(480Mbps) pwr=ON

Thanks