[ath5k-devel] Master mode in ath5k
Hi, Does ath5k support Master mode and half and quarter channel widths? Thanks regards, Aditya Bhave ___ ath5k-devel mailing list ath5k-devel@lists.ath5k.org https://lists.ath5k.org/mailman/listinfo/ath5k-devel
[ath5k-devel] Does ath5k/9k work on 64 bit OSs and machines?
Hi, I am using atth5k/9k driver extensively for my project work. Currently I run it on the 32-bit Lucid Lynx OS on a 32-bit Intel processor. Im thinking of purchasing a new computer and the newer processors these days are all 64 bits. I was wondering if anyone has experienced any problems installing and using these drivers for 64 bit machines? Thanks regards, Aditya Bhave ___ ath5k-devel mailing list ath5k-devel@lists.ath5k.org https://lists.ath5k.org/mailman/listinfo/ath5k-devel
Re: [ath5k-devel] Regarding changing channel widthlin
Is there any detailed documentation on the internals of ath5k code? 1. Description of the data structures 2. Flow-diagram of function calls 3. What register is used for what aspect of WiFi etc etc Thanks --Aditya Luis R. Rodriguez wrote: On Tue, Oct 6, 2009 at 5:17 PM, Nick Kossifidis mickfl...@gmail.com wrote: Until we have a clean way to set this through cfg80211/nl80211 (which is an ongoing discussion) we wont support 5/10Mhz operation but you can try and let us know. I believe the cfg80211/nl80211 changes is probably the bulk of the work that does need to get done. Someone motivated just needs to do it. Luis ___ ath5k-devel mailing list ath5k-devel@lists.ath5k.org https://lists.ath5k.org/mailman/listinfo/ath5k-devel
Re: [ath5k-devel] Regarding how to change channel width for 802.11a/b/g
Hi, Thanks for your prompt responses. Another member posted some time back that the 'iw' command can set the bandwidth to be 40 MHz in addition to the default 20. So I guess user-level API support is already built in for this kind of change. Don't we just need to extend it's implementation to accept bandwidths (within the ISM band) of any width? I understand there will also be regulatory concerns, but for my research work at the moment, I was wondering how many software changes (hacks) need to be done in ath5k/9k in order to make this work? Thanks regards, Aditya Bhave Pavel Roskin wrote: On Thu, 2009-08-20 at 04:41 -0700, shashi raj singh wrote: Hi Aditya I think by changing PLL control register setting u sud b able to achieve your goal.(also u will require som sw changes) look in reg.h of ath5k The question is not how to do it in the chipset. The question is how to make it properly on all layers. Should we use the same channel numbers for narrow bandwidth or different channels? How should the userspace set the bandwidth? Are there any regulatory considerations? How can we integrate the new functionality smoothly with the already existing support for setting 40 MHz bandwidth for 802.11n? How should the collision avoidance work? I think linux-wirel...@vger.kernel.org would be a better place to discuss it. Once the design issues are resolved, ath5k would be probably the first driver to implement the narrow channels. But implementing a hack specific to ath5k won't be appreciated upstream. ___ ath5k-devel mailing list ath5k-devel@lists.ath5k.org https://lists.ath5k.org/mailman/listinfo/ath5k-devel
Re: [ath5k-devel] Regarding how to change channel width for 802.11a/b/g
Thanks Benoit for your prompt response. So you are saying that 'ath9k' has this command, but not 'ath5k'? Can you please tell me the sections of code I need to look at in order to understand how to change the channel width? A recent SIGCOMM paper did some research on adapting channel width in wireless networks. They used Windows drivers for the Atheros chipsets and were able to program 5,10,20,40 MHz channels. No details were given apart from the hint that they manipulated the clock rate of the card. Any idea on how to do this in the present 'ath5k' or 'ath9k' code? Thanks regards, Aditya Bhave Benoit PAPILLAULT wrote: -BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Aditya a écrit : Hi, I am a completely newbie to ath5k. My question is: Is there a command I can use to dynamically (within a program) change the channel width of the radio between the values 5, 10, 20, 40 MHz? Thanks for your help regards, Aditya Bhave Good questions. There is a way in mac80211 to change to 40MHz versus 20 MHz with iw (iw dev wlan0 set channel 1 ht40+). For sure, it's not supported by ath5k since it does not support 802.11n. Regarding 5 and 10 MHz, I have not seen anything in mac80211 despite it's in the IEEE 802.11-2007 specifications Regards, Benoit -BEGIN PGP SIGNATURE- Version: GnuPG v1.4.9 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iEYEARECAAYFAkqL5k8ACgkQOR6EySwP7oLGQACg1ULl8u7xZWfoaxFBUG/YKbns 3/IAnjoAe+J1vgqeW0foIc4y5SGRrxZu =5wDo -END PGP SIGNATURE- ___ ath5k-devel mailing list ath5k-devel@lists.ath5k.org https://lists.ath5k.org/mailman/listinfo/ath5k-devel
