Hi, I'm new to HIPL and studying it. I have some simple questions regarding to HIPL kernel code file locations: 1. When I read the "design_choices" document and get to know HIPL is implemented using linux kernel module, but i could not find it in HIPL source code except hipsock. I went through hipsock module briefly, and think it's not what "design_choices" describes. So the question is where the code is located? 2. I noticed that "The kernel modifications for HIP are available in vanilla Linux kernel 2.6.27 and above." is mentioned in user mannual. But I searched my on-hand vanilla kernel (2.6.39) and find no HIP related codes. Could you help provide some clue? 3. I checked the hipd module and found it implements HIP state machine in user space process. From document "design_choices", I think this is implemented in kernel. So is there any configuration way to choose user-space or kernel-space implementation? 4. In document "design_choices", one kernel thread khipd is mentioned. But I also could not find anything related with it...... Thanks for your guidance to help me out of struggling in advance! Thanks, Lyon -------------------------------------------------------- ZTE Information Security Notice: The information contained in this mail is solely property of the sender's organization. This mail communication is confidential. Recipients named above are obligated to maintain secrecy and are not permitted to disclose the contents of this communication to others. This email and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. If you have received this email in error please notify the originator of the message. Any views expressed in this message are those of the individual sender. This message has been scanned for viruses and Spam by ZTE Anti-Spam system.