On Tue, Mar 3, 2009 at 2:41 PM, Bo Han <hanb...@gmail.com> wrote: > Hi, > > I am having troubles when using ASUS WL-138G V2 Wireless LAN PCI Adapters. > I am using ad-hoc mode and kernel version 2.6.28.7. There is no rate > control for these cards. When I set the bit rate to auto, they always use 1 > Mbps (they are very close to each other, around 1 meter). Also when two PCI > cards talk with each other, they do not support bit rates 48 and 54 Mbps. > The link quality for 36 Mbps is very good. When I ping from one to another, > most of the time, no packets can get through. Sometimes, I can get two ICMP > responses. They can use these rates for ACK frames when talking with an AP, > which means the modulation is there, but not works well for data packet?. > > I also attached the output of dmesg and lspci below. > > Thanks, > -Bo > > ******************************************************************************************* > > output of dmesg: > > [ 443.929045] b43-phy0: Broadcom 4318 WLAN found > [ 443.939533] cfg80211: Regulatory domain changed to country: US > [ 443.939542] (start_freq - end_freq @ bandwidth), (max_antenna_gain, > max_eirp) > [ 443.939548] (2402000 KHz - 2472000 KHz @ 40000 KHz), (300 mBi, 2700 > mBm) > [ 443.939553] (5170000 KHz - 5250000 KHz @ 40000 KHz), (300 mBi, 1700 > mBm) > [ 443.939558] (5250000 KHz - 5330000 KHz @ 40000 KHz), (300 mBi, 2000 > mBm) > [ 443.939563] (5490000 KHz - 5710000 KHz @ 40000 KHz), (300 mBi, 2000 > mBm) > [ 443.939568] (5735000 KHz - 5835000 KHz @ 40000 KHz), (300 mBi, 3000 > mBm) > [ 443.972021] b43-phy0 debug: Found PHY: Analog 3, Type 2, Revision 7 > [ 443.972048] b43-phy0 debug: Found Radio: Manuf 0x17F, Version 0x2050, > Revision 8 > [ 444.013508] phy0: Selected rate control algorithm 'pid' > [ 444.014981] Broadcom 43xx driver loaded [ Features: PMLR, Firmware-ID: > FW13 ] > [ 444.180267] input: b43-phy0 as /class/input/input6 > [ 444.272050] b43 ssb0:0: firmware: requesting b43/ucode5.fw > [ 444.283513] b43 ssb0:0: firmware: requesting b43/pcm5.fw > [ 444.325147] b43 ssb0:0: firmware: requesting b43/b0g0initvals5.fw > [ 444.350355] b43 ssb0:0: firmware: requesting b43/b0g0bsinitvals5.fw > [ 444.484033] b43-phy0: Loading firmware version 410.2160 (2007-05-26 > 15:32:10) > [ 444.504040] b43-phy0 debug: Chip initialized > [ 444.504461] b43-phy0 debug: 32-bit DMA initialized > [ 444.524509] Registered led device: b43-phy0::tx > [ 444.524553] Registered led device: b43-phy0::rx > [ 444.524587] Registered led device: b43-phy0::assoc > [ 444.524622] Registered led device: b43-phy0::radio > [ 444.524655] b43-phy0 debug: Wireless interface started > > output of lspic: > > 00:13.0 Network controller: Broadcom Corporation BCM4318 [AirForce One 54g] > 802.11g Wireless LAN Controller (rev 02) > Subsystem: ASUSTeK Computer Inc. Device 100f > Flags: bus master, fast devsel, latency 32, IRQ 18 > Memory at dd800000 (32-bit, non-prefetchable) [size=8K] > Kernel driver in use: b43-pci-bridge > Kernel modules: ssb > > > _______________________________________________ > Bcm43xx-dev mailing list > Bcm43xx-dev@lists.berlios.de > https://lists.berlios.de/mailman/listinfo/bcm43xx-dev > >
A distance of ~1m is actually too close, it can result in antenna saturation. Try reducing the TX power of the cards. -- Vista: [V]iruses, [I]ntruders, [S]pyware, [T]rojans and [A]dware. :-) _______________________________________________ Bcm43xx-dev mailing list Bcm43xx-dev@lists.berlios.de https://lists.berlios.de/mailman/listinfo/bcm43xx-dev
