STREAMS-UX Programmer's Guide (February 2007)

Differences Between STREAMS/UX and System V Release 4 STREAMS
HP-UX Changes to Cloning
Appendix E
276
HP-UX Changes to Cloning
STREAMS/UX supports two methods of cloning. See the SVR4.2 STREAMS manual for more information
about cloning. Chapter 4, “Modules and Drivers,” explains the two HP-UX cloning methods in detail.
The major number for the clone driver in HP-UX is 72 while SVR4.2 cloning uses 63 as the major number of
the clone driver.
STREAMS/UX Hardware Driver Writing
STREAMS/UX does not provide all the kernel utilities needed to write a STREAMS hardware driver.
STREAMS/UX provides only the utilities described in this manual. Customers who need to write STREAMS
hardware drivers should refer to the HP-UX Driver Development Guide for details.