Hello Jes, Le Tue, 28 Nov 2017 11:14:10 -0500, Jes Sorensen <jes.sorensen@xxxxxxxxx> a écrit : > On 11/22/2017 04:51 AM, Mylene JOSSERAND wrote: > > Hello Jes Sorensen, > > > > I am currently testing a LM811 Wifi/BT USB dongle [1] on a Sinlinx > > SinA33 Allwinner SoC board [2]. I saw that I should use the realtek > > driver RTL8723BU for this USB dongle. > > > > Currently, I am only testing the Wifi and the mainline driver (kernel > > 4.14-rc7) does not seem to work. At least, the scanning does not output > > anything. > > > > I tested the driver recommended by LM Technologies [3] and it works > > fine (scan, connect and ping are ok). Before investigating on the > > differences between these two drivers, do you have any idea about this > > issue? > > > > Here are the commands and output I got with mainline's driver: > > I have not looked at the driver these LM Technologies people are > referring to, but I am guessing it's the vendor code. > > 8723bu is a little dicey because it has BT in the chip and if you enable > that the two drivers need to interact, which rtl8xxxu currently doesn't > know about. Check your dmesg output to make sure you don't have some BT > thing loaded hijacking the chip. I finally tested it again without any BT stuff enabled and I am still not having any output on scanning. I added DEBUG support to have all dev_dbg outputs for rtl8xxxu (core and 8723b). Here is the log of boot and different iw commands: http://code.bulix.org/56345t-242970?raw Do you have any idea/hint to give me? I checked the firmware: I am using the last one from linux-firmware's repository. Have you already tried this chip? With which firmware? Thank you very much for any help. Best regards, -- Mylène Josserand, Free Electrons Embedded Linux and Kernel engineering http://free-electrons.com
