Hi Jeremy, please try latest firmware, https://github.com/olerem/ath9k-htc-firmware-blob Am 23.12.2014 um 00:53 schrieb Jeremy Audet: > ath9k_htc driver bug report > =========================== > > I'm writing in to report a bug (I think) with the ath9k_htc driver. > > I am using a TP-LINK TL-WN722N USB wireless adapter. According to the USB > drivers page [1], this device uses the ath9k_htc driver, and the ath9k_htc > driver page [2] requests that readers "report bugs, crashes, weird behavior and > other general tantrums thrown by the driver." That's what I'm doing now. > > I am attempting to use the TL-WN722N to create a wireless access point. (Yeah, > I'm sure there's better devices out there. Spare me the sarcasm, but please do > give a suggestion for better-supported hardware.) I have briefly been able to > make this work: my phone has associated with an access point advertised by the > TL-WN722N and accessed outside networks at wonderfully zippy WiFi speeds. > Unfortunately, the AP functioned for a mere matter of minutes. > > This has made me wonder whether the issue lies with netctl (the high-level > network manager I'm using) or underlying software. Unfortunately, the latter > appears to be the case. Merely bringing up the wireless interface with the `ip` > utility causes gobs of nasty information to be printed to the system log. > > You ask for a bit of information on the "Reporting_bugs" web page, and what > follows is my best attempt to provide that information. Please let me know if > there's anything else I can do to help diagnose or fix this issue. I'm modestly > experienced with software engineering, Linux system administration and computer > networking, and I am happy to learn more, but this is totally new to me. > > Please CC me when replying. I am not subscribed to this mailing list. > > device information > ------------------ > > Trimmed output from `sudo bash -c 'lsusb -v'` is available here: > http://www.ichimonji10.name/downloads/tl-wn722n-lsusb.txt > > Device firmware is installed on the system. > > $ find /usr/lib/firmware -name '*9271*' > /usr/lib/firmware/ar9271.fw > /usr/lib/firmware/htc_9271.fw > > software versions > ----------------- > > Here you go: > > $ uname -a > Linux pine 3.17.6-1-ARCH #1 SMP PREEMPT Sun Dec 7 23:43:32 UTC > 2014 x86_64 GNU/Linux > $ ip -V > ip utility, iproute2-ss141009 > $ netctl --version > netctl version 1.9 > > command invocations and log output > ---------------------------------- > > The system has three physical interfaces. enp2s0 is used as an external > interface, and the internal interfaces are enp3s0 and wlp0s18f0u4. > > $ ip link show > 1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state > UNKNOWN mode DEFAULT group default > link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00 > 2: enp3s0: <BROADCAST,MULTICAST> mtu 1500 qdisc fq_codel state > DOWN mode DEFAULT group default qlen 1000 > link/ether b8:97:5a:04:f4:c8 brd ff:ff:ff:ff:ff:ff > 3: enp2s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc > fq_codel state UP mode DEFAULT group default qlen 1000 > link/ether 68:05:ca:01:20:a0 brd ff:ff:ff:ff:ff:ff > 6: wlp0s18f0u4: <BROADCAST,MULTICAST> mtu 1500 qdisc mq state DOWN > mode DEFAULT group default qlen 1000 > link/ether e8:de:27:1a:31:a6 brd ff:ff:ff:ff:ff:ff > > The wireless interface can successfully be brought up and down. > > $ sudo ip link set dev wlp0s18f0u4 up; echo $? > 0 > $ sudo ip link set dev wlp0s18f0u4 down; echo $? > 0 > > I executed `iw event -t` before executing the `ip` commands above. It had > nothing to say. I also executed `dmesg --follow > ~/tmp/dmesg.log` while > executing the `ip` commands above, and it had lots to say: > > $ wc ~/tmp/dmesg.log > 61391 385687 5337913 /home/ichimonji10/tmp/dmesg.log > > `dmesg.log` is available here: > http://www.ichimonji10.name/downloads/tl-wn722n-dmesg.txt > > -Jeremy "Ichimonji10" Audet > > [1] http://wireless.kernel.org/en/users/Drivers > [2] http://wireless.kernel.org/en/users/Drivers/ath9k_htc > [3] https://wiki.archlinux.org/index.php/Netctl > -- > 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 > -- Regards, Oleksij
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