On 11/06/2024 18:54, Martin Kaistra wrote: > Hi Ping-Ke, hi Bitterblue, > > I have a problem with the rtl8xxxu driver and 8188f, but only on some boards. More specifically, I can see that during the second channel switch (which happens when I do "iw dev wlan0 scan"), the rtl8xxxu_read32(0e08) returns -110 (ETIMEDOUT) and after that no reads or writes work anymore until I unload and reload the driver. > > The strange thing now is, that even though it seems to be hardware dependent the vendor driver does not have this problem. > > I tried to change the probe and start functions, so that they behaved exactly as their vendor driver equivalents, but so far I don't see any improvement. > > I was hoping, that one of you maybe has an idea, what could be causing such an issue and how to avoid it. > > Martin Does it still die if you do a passive scan? I wonder what vendor driver you are using? Is it loading the same v4.0 firmware as rtl8xxxu? Why reloading rtl8xxxu makes it work again? A USB reset? Or something in the disconnect function? To avoid the problem, obviously you have to make rtl8xxxu even more like the vendor driver. :)
