On Thu, Apr 16, 2009 at 3:11 PM, Nick Kossifidis <mickflemm@xxxxxxxxx> wrote: > 2009/4/16 Hans Maes <Hans@xxxxxxxxx>: >> Hello, >> >> I'm not sure this is the correct place to ask my question, but I've been >> searching on google for ages now and can't seem to find an answer so I'm >> asking it here. >> If not, please yell at me and tell me where to go whine instead ;-) >> >> I'm using CM11 a/b/g cards with the Atheros AR5414A Chip, which have 2 >> antenna connectors. >> I only have 1 antenna connected to the MAIN connector. >> Running a self compiled 2.6.29 kernel on a few debian lenny boxes with ath5k >> module for the wireless cards, set up in mesh mode. >> Seems to work fine on the test bench, but behaves rather poorly in >> production environment. >> Everything related to the mesh network setup seems to work, but I have about >> 40% - 60% packet loss on the entire netwerk (about 15 nodes) >> >> I'm guessing this has something to do with the antenna diversity setting. >> >> Can anybody tell me how to tell the ath5k module to disable antenna >> diversity and only use the MAIN antenna ? >> >> If this is a RTFM thingie, then I apologize, I just can't seem to find it >> anywhere. >> >> Please reply to my personal e-mail address as well, I'm not subscribed to >> the list. >> >> Thanks for your help. >> >> Regards, >> >> Hans > > After this patch... > https://lists.ath5k.org/pipermail/ath5k-devel/2009-April/002264.html > > It's possible to tell the driver to use one fixed antenna (in your > case its fixed antenna A). Just change... > ath5k_hw_set_antenna_mode(ah, AR5K_ANTMODE_DEFAULT); > > with > ath5k_hw_set_antenna_mode(ah, AR5K_ANTMODE_FIXED_A); > > we will have a better way to change this in the future ;-) I wonder if just exporting that as a modparam is a good-enough choice... though perhaps the best solution would be something like "iw phy phy0 antenna 1 up/down". Or perhaps we should make antenna diversity depend on the PCI ID, defaulting to 1 antenna when diversity support cannot be determined. -- Vista: [V]iruses, [I]ntruders, [S]pyware, [T]rojans and [A]dware. :-) -- To unsubscribe from this list: send the line "unsubscribe linux-wireless" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
