by tuxx » Fri Jan 16, 2015 9:10 am
Hi all,
I have been experimenting for days with Udoo quad and wireless for some days now. I am using it in order to get music from my linux nas and play my flac files with mpd and a usb dac.
At first I heard some drops and running dmesg I saw a ralink related error:
$this->bbcode_second_pass_quote('', '[') 2417.288971] ieee80211 phy0: rt2800usb_txdone: Warning - Data pending for entry 8 in queue 2
As I understand this is an old bug and many distributions have suffered from that when realtek based wifi adatpters are used.
https://bugzilla.redhat.com/show_bug.cgi?id=913631https://bugzilla.kernel.org/show_bug.cgi?id=62781I have done my search in google and I have applied some "fixes" mainly related with the wifi and usb power management.
The kernel I am using is 3.18.2 (generic armv7).
I have turned off wifi power management with command:
$this->bbcode_second_pass_code('', 'iwconfig wlan0 power off')
I have also turned usb autosuspend off with command:
$this->bbcode_second_pass_code('', 'echo -1 >/sys/module/usbcore/parameters/autosuspend')
Both commands run after each boot.
The result is that the error above is not so frequent any more, but it's still there. Do you have any suggestion in order to be able to get rid of this realtek bug?
Here are some more detailed logs of my system:
http://pastebin.com/0f5ucu4dThank you in advance.