Am 13.01.2015 um 23:46 schrieb Jeremy Audet: > Grr. I'm sending this again. My first email was filtered by kernel > mailing list due to the presence of HTML in the message. > > Hi again, > > The USB hub has arrived. [1] I ran through the same test procedure as last time: > > 1. Start collecting logging info with `journalctl -k --follow -n 0`. > 2. Plug in the hub, if appropriate. Plug in the TL-WN722N. > 3. Bring up the adapter with `ip link set dev $device up`. > 4. Wait for an error. > > My test system has changed slightly since I last ran this test, so I > made sure to run the test twice: once without a USB hub, and once with > a USB hub. When I ran this test without the USB hub, the kernel > immediately emitted gobs of messages and the TL-WN722N was immediately > demoted to a full-speed device. I didn't even have a chance to bring > up the device with `ip link set dev $device up`. [2] When I ran this > test with a USB hub, the kernel did eventually emit gobs of messages, > but lead-up to that failure did contain some new error messages. > > I mentioned that my test system has changed. In particular, I've added > a new PCI wireless adapter to the system. [4] I've also installed some > updates, but it is worth noting that the software listed in my > original email has not changed: > > $ 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 > > —Jeremy 'Ichimonji10' Audet > > [1] http://i.imgur.com/TdlwxIC.jpg > [2] http://www.ichimonji10.name/downloads/2015-01-13-p3-new-nohub.txt > [3] http://www.ichimonji10.name/downloads/2015-01-13-p3-new-hub.txt > [4] Output from lspci -v: > 04:05.0 Network controller: Ralink corp. RT3060 Wireless 802.11n 1T/1R > Subsystem: Edimax Computer Co. Device 7711 > Flags: bus master, slow devsel, latency 32, IRQ 20 > Memory at fe900000 (32-bit, non-prefetchable) [size=64K] > Capabilities: <access denied> > Kernel driver in use: rt2800pci > Kernel modules: rt2800pci > -- > 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 > Looks like with the hub it can work at least some hours. Correct? Lets try to reduce interrupt traffic on usb by disabling led blinking with this command: sudo bash -c "echo none > /sys/class/leds/ath9k_htc-phy*/trigger" -- Regards, Oleksij
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