From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from mx51.mymxserver.com ([85.199.173.110]:44733 "EHLO mx51.mymxserver.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751269AbZHXISw (ORCPT ); Mon, 24 Aug 2009 04:18:52 -0400 From: Holger Schurig To: "Jinsung Lee" Subject: Re: Implementing wireless testbed on Linux Date: Mon, 24 Aug 2009 10:18:13 +0200 Cc: linux-wireless@vger.kernel.org References: <029301ca2239$0ac9ad70$205d0850$@kaist.ac.kr> In-Reply-To: <029301ca2239$0ac9ad70$205d0850$@kaist.ac.kr> MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Message-Id: <200908241018.13234.hs4233@mail.mn-solutions.de> Sender: linux-wireless-owner@vger.kernel.org List-ID: > In the case of using 802.11n chipset, which card and device > driver should I choose? At the same time, which version of > Linux kernel should be appropriate? I'd go with Atheros based PCI cards. The cards are good, and the support is outstanding (Atheros people work together with Linux community on this mailing list!). > Is there any difference between pci and usb interfaces? Sure. Please read http://www.pcisig.com/specifications and http://www.usb.org/developers/docs/. The busses are VERY different in case of hierarchy, latency, max transfer rates and so on. I fear, however, that this mailing list isn't the right channel to transfer this knowledge. > Definitely, all device and software should be stable and > up-to-date. That's a contradicion. Especially wireless is quite evolving in the Linux kernel. There's the possibility that you use a vendor-kernel (e.g. Debian kernel, Fedora kernel, or whatever distro you use). I personally won't do this, but I'd use a more "vanilla" kernel. The vendors usually put a huge amount on patches into their kernels, that will make results not as easy to compare. Also, if you have a specific questions, chances are way higher that the people in the mailing list know about the "vanilla" kernel or wireless-testing kernel than some random vendor kernel. If you absolutely need something stable, you should go with the least recent stable linux kernel (see http://www.kernel.org/). If you want to be more up-to-date, you should use wireless-testing. Expect new functionality, fixed bugs, but also new bugs there :-) However, If you ever have to change some driver code, you definitely want wireless-testing. You cannot (usually) use the source from the stable kernel when submitting patches. More info at http://wireless.kernel.org/en/developers/Documentation