iwlist scanning always shows no networks. $ sudo iwlist wlan0 scanning wlan0 Â Â No scan results ath9k was loaded automatically. (OS: using kubuntu 10.10, amd64, linux 2.6.35) (Device: TP-Link TL-WN951N; 03:06.0 Network controller: Atheros Communications Inc. AR5008 Wireless Network Adapter (rev 01); 03:06.0 Network controller [0280]: Atheros Communications Inc. AR5008 Wireless Network Adapter [168c:0023] (rev 01); ieee80211 phy1: Atheros AR5416 MAC/BB Rev:2 AR2133 RF Rev:81 mem=0xffffc900112e0000, irq=21) Each iwlist scanning request results in several failed to stop tx dma and dma failed to stop entries in the system log. Mar 6 19:58:14 kernel: [ 1758.089779] ath: Failed to stop TX DMA in 100 msec after killing last frame Mar 6 19:58:14 kernel: [ 1758.098734] ath: Failed to stop TX DMA in 100 msec after killing last frame Mar 6 19:58:14 kernel: [ 1758.098836] ath: Failed to stop TX DMA! Mar 6 19:58:14 kernel: [ 1758.112192] ath: DMA failed to stop in 10 ms AR_CR=0x00000024 AR_DIAG_SW=0x42000020 Mar 6 19:58:14 kernel: [ 1758.112200] ath: Could not stop RX, we could be confusing the DMA engine when we start RX up Mar 6 19:58:14 kernel: [ 1758.125541] ath: DMA failed to stop in 10 ms AR_CR=0x00000024 AR_DIAG_SW=0x42000020 Mar 6 19:58:14 kernel: [ 1758.141709] ath: DMA failed to stop in 10 ms AR_CR=0x00000024 AR_DIAG_SW=0x42000020 Mar 6 19:58:14 kernel: [ 1758.141712] ath: Could not stop RX, we could be confusing the DMA engine when we start RX up Mar 6 19:58:14 kernel: [ 1758.154747] ath: DMA failed to stop in 10 ms AR_CR=0x00000024 AR_DIAG_SW=0x42000020 I have tried ath9k from http://wireless.kernel.org/download/compat-wireless-2.6/compat-wireless-2.6.tar.bz2 2011-03-08 as well as the linux-backports-modules I am actually not using an access point using n, just b and g. So two questions, should this card be supported by the ath9k and should it work with b and g networks? According to linuxwireless.org/en/users/Drivers/ath9k this combination AR5416+AR5133 (>= 2.6.27) is supported. (Although http://linuxwireless.org/en/users/Drivers/ath9k/devices indicates that the TL-WN951N is not supported while the TL-WN961N is.) According to http://wiki.debian.org/ath9k ath9k is meant to support both PCI: 168C:0023 Atheros Communications Inc. AR5008 Wireless Network Adapter PCI: 168C:0024 Atheros Communications Inc. AR5008 Wireless Network Adapter So what might I be doing wrong? Thanks for any suggestions as well as instructions of whatever debugging data might be helpful. -- 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
