On Sun, May 31, 2009 at 07:11:11PM -0700, Nick Kossifidis wrote: > 2009/6/1 omniprese...@wired® <omniwi...@gmail.com>: > > Date: Sat, 30 May 2009 14:21:14 +0100 > > From: Albert Gall <ss3...@gmail.com> > > Subject: Re: [ath5k-devel] problem with senao (EPI-3601S) 600mW card > > To: ath5k-devel@lists.ath5k.org > > Message-ID: <20090530132114.ga8...@localhost> > > Content-Type: text/plain; charset=us-ascii > > > > Hi > > > > I have this card. > > You need a regdomain allowing this, latest compat-wireless, latest crda, > > latest wireless-regdb and ath_info tool from madwifi. > > > > First download the wireless interface: > > > > # ip link set wlan0 down > > > > or > > > > # ifconfig wlan0 down > > > > Retrieve the module's PCI memory address with lspci: > > > > # lspci -v > > ... > > 02:06.0 Ethernet controller: Atheros Communications Inc. Atheros > > AR5001X+ Wireless Network Adapter (rev 01) > > Subsystem: Atheros Communications Inc. TRENDnet TEW-443PI > > Wireless PCI Adapter > > Flags: bus master, medium devsel, latency 168, IRQ 16 > > here --> Memory at ff5e0000 (32-bit, non-prefetchable) [size=64K] > > ... > > > > Set regdomain to 0x55: > > > > # ./ath_info -w ff5e0000 regdomain 0x55 > > > > Now download ath5k: > > > > # modprobe -r ath5k > > > > Finally : > > > > # modprobe cfg80211 ieee80211_regdom=BZ && sleep 2s && COUNTRY="BZ" > > crda && modprobe -v ath5k > > > > # iw list > > > > > > Thank you, I did what you told me. And now I see that I have 30 dBm max > > this is my *new* "iw reg get" > > country BZ: > > (2402 - 2482 @ 40), (N/A, 30) > > (5735 - 5835 @ 40), (N/A, 30) > > Other tools also say I have 30 dBm Max. > > > > But the problems continues because I don't see any power improvements. > > I once again played with this > > #define AR5K_TUNE_MAX_TXPOWER > > which is in the ath5k.h file. And set it to 600. > > > > All this using the 31/May/2009 driver. > > > > What else can I try to get the maximum power in Linux? > > > > Thank you so much for your help! > > > > a) AR5K_TUNE_MAX_TXPOWER is in 1/2 dB units so 600 will have no > effect, max gain hw can support is 31.5dB so current value (63) is the > max value, you can only tweak this to lower max power not to increase > it.
I should also note that when modifying your "EEPROM" with the trick above you also get a new set of CTL indexes which may or may not have been tested by the manufacturer. In other words you're on your own. > b) Your current channel/rate might have a lower power limit than the > power you are trying to set. The specs sheet you posted on the first > post mentions that you only get 27dBm on b rates and 26dBm on 6-24 g > rates. For 54Mb/sec the max power according to specs is 22dBm so you > won't get higher than that. If you try to go higher you'll get > spectral mask distortion and you won't be able to transmit anything. > > c) How do you measure the output power ? Do you have a spectrum > analyzer, a power meter or another wi-fi card ? Luis _______________________________________________ ath5k-devel mailing list ath5k-devel@lists.ath5k.org https://lists.ath5k.org/mailman/listinfo/ath5k-devel
