USB/IP - a Peripheral Bus Extension for Device Sharing over IP Network
Takahiro Hirofuchi, Eiji Kawai, Kazutoshi Fujikawa, and Hideki Sunahara
This paper received the Best Paper Award at the
As personal computing becomes more popular and affordable, the
availability of peripheral devices is also increasing rapidly.
However, these peripheral devices can usually only be connected to a
single machine at time.
The ability to share peripheral devices between computers without any
modification of existing computing environments is, consequently, a
highly desirable goal, as it improves the efficiency and usability of
Existing device sharing technologies in the pervasive computing area
are not sufficient for peripheral devices designed for personal
computers, because these technologies do not provide the degree of
networktransparency necessary for both applications and device drivers.
In this paper, we propose USB/IP as a peripheral bus extension over an
Internet Protocol (IP) network.
This novel device sharing approach is based on the sophisticated
peripheral interfaces that are supported in most modern operating
Using a virtual peripheral bus driver, users can share a diverse range
of devices over networks without any modification in existing operating
systems and applications.
Our experiments show that USB/IP has sufficient I/O performance for
many USB devices, including isochronous ones.
We also describe performance optimization criteria that can be used to
achieve further performance improvements.
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