lwfinger / rtl8723bu

Driver for RTL8723BU
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2 sticks simultaniously on a raspberry ? #138

Open raspi-GitHub opened 5 years ago

raspi-GitHub commented 5 years ago

hi folks,

when configuring the 2nd EDIMAX EW-7611ulb I get: :~ $ sudo ifdown wlan4 && sudo ifup wlan4 ifdown: interface wlan4 not configured RTNETLINK answers: File exists ifup: failed to bring up wlan4 :~ $ sudo ifdown wlan3 && sudo ifup wlan3 ifdown: interface wlan3 not configured RTNETLINK answers: File exists ifup: failed to bring up wlan3

configuring the 1st stick runs well, everything runs fine

regards

lwfinger commented 5 years ago

It may not be possible to run 2 or more. The reason is that Realtek drivers tend to use global variables too much. If those are read-only, then there is no problem, but if the driver writes to one of these, then multiple devices will fall over each other.

If you identify such globals, I will try to fix the issue. At the moment, I do not have time to look for such problems.

Lumumba commented 5 years ago

Just wanted to state that for me with linux Mint 19.2 the rtl8723bu now works without problems with the live usb stick. So maybe the bugs with rtl8xxx drivers was fixed. So maybe you just have to wait for a newer kernel for raspi and it will work.