Hello,

Id like to use a USB device from uml (a USRP specifically:
http://en.wikipedia.org/wiki/Universal_Software_Radio_Peripheral). Searching
the web yielded:

* there used to be some code for a host controller driver back in 2001:
  (http://lwn.net/2001/0419/a/uml-usb.php3). Seems it hasnt survived:
  http://copilotconsulting.com/mail-archives/uml.2005/msg01397.html

* Once in a while people asked for USB support and have been told there is
  none: http://thread.gmane.org/gmane.linux.uml.user/5664/focus=5724 , but it
  would not be too hard to implement

AFAIK libusb provides an abstraction layer for implementing USB device drivers
in user space. Does someone know what libusb needs on the backend (a short
google search didnt produce any results i could understand immediately)?

Would it be enough to forward a character device file or does one need more?
In general: can one forward an arbitrary character device as it is already
possible for block devices (ubdn=...)?

-- 
Best Regards,
Leonid Chaichenets.

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