https://community.hpe.com/t5/operating-system-hp-ux/hpux-kernel/m-p/4711707#M613733 Yes I am in the product which have some kernel space code in it . And I am going to write a psuedo driver , which need this info .. Thu, 11 Nov 2010 11:27:18 GMT Soumya Poddar 2010-11-11T11:27:18Z https://community.hpe.com/t5/operating-system-hp-ux/hpux-kernel/m-p/4711705#M613731 can you please tell me about the function <BR />pcallback_register &amp; also some source and man pages form which I can get more informations <BR /><BR /> Wed, 10 Nov 2010 14:18:37 GMT https://community.hpe.com/t5/operating-system-hp-ux/hpux-kernel/m-p/4711705#M613731 Soumya Poddar 2010-11-10T14:18:37Z https://community.hpe.com/t5/operating-system-hp-ux/hpux-kernel/m-p/4711706#M613732 Unless you are a kernel developer, nobody will have this info.<BR />Are you writing a driver? Have you seen these threads?<BR /><A href="http://www.hp.com/go/hpux_ddk" target="_blank">http://www.hp.com/go/hpux_ddk</A><BR />FAQ:<BR /><A href="http://h21007.www2.hp.com/portal/download/files/unprot/ddk/HP-UXDDKFAQ.htm" target="_blank">http://h21007.www2.hp.com/portal/download/files/unprot/ddk/HP-UXDDKFAQ.htm</A> <BR /><A href="http://forums.itrc.hp.com/service/forums/questionanswer.do?threadId=1252977" target="_blank">http://forums.itrc.hp.com/service/forums/questionanswer.do?threadId=1252977</A><BR /><A href="http://forums.itrc.hp.com/service/forums/questionanswer.do?threadId=1260148" target="_blank">http://forums.itrc.hp.com/service/forums/questionanswer.do?threadId=1260148</A> Thu, 11 Nov 2010 10:34:37 GMT https://community.hpe.com/t5/operating-system-hp-ux/hpux-kernel/m-p/4711706#M613732 Dennis Handly 2010-11-11T10:34:37Z https://community.hpe.com/t5/operating-system-hp-ux/hpux-kernel/m-p/4711707#M613733 Yes I am in the product which have some kernel space code in it . And I am going to write a psuedo driver , which need this info .. Thu, 11 Nov 2010 11:27:18 GMT https://community.hpe.com/t5/operating-system-hp-ux/hpux-kernel/m-p/4711707#M613733 Soumya Poddar 2010-11-11T11:27:18Z https://community.hpe.com/t5/operating-system-hp-ux/hpux-kernel/m-p/4711708#M613734 Why don't you try out the book "inside the HPUX operating system" (HP courseware). This will definitely help you out.<BR /><BR />Regards Thu, 11 Nov 2010 21:15:01 GMT https://community.hpe.com/t5/operating-system-hp-ux/hpux-kernel/m-p/4711708#M613734 Ismail Azad 2010-11-11T21:15:01Z https://community.hpe.com/t5/operating-system-hp-ux/hpux-kernel/m-p/4711709#M613735 HP offers a "Driver Development Guide" - <A href="http://h21007.www2.hp.com/portal/site/dspp/menuitem.863c3e4cbcdc3f3515b49c108973a801?ciid=c70818f70fe0211018f70fe02110275d6e10RCRD" target="_blank">http://h21007.www2.hp.com/portal/site/dspp/menuitem.863c3e4cbcdc3f3515b49c108973a801?ciid=c70818f70fe0211018f70fe02110275d6e10RCRD</A><BR /><BR />That link is for 11i v1, which is what I'm concerned with, but I'm sure they have similar documentation for 11i v3.<BR /><BR />They also have a Driver Developers' Kit which is a package of documentation and development and test tools. Sat, 20 Nov 2010 14:09:00 GMT https://community.hpe.com/t5/operating-system-hp-ux/hpux-kernel/m-p/4711709#M613735 mvpel 2010-11-20T14:09:00Z