On 11/28/2017 11:49 AM, Nikolay Borisov wrote:

On 28.11.2017 18:35, Jes Sorensen wrote:

quoted

On 11/28/2017 11:26 AM, Nikolay Borisov wrote:

quoted

On 28.11.2017 18:16, Jes Sorensen wrote:

quoted

On 11/14/2017 05:39 AM, Nikolay Borisov wrote:

quoted

I just tested with verbatim 4.14 and even though the wireless works, 
iwconfig reports something strange: 

iwconfig wifi1
wifi1     no wireless extensions.

However, my device works as expected (albeit still slow): 

wifi1     Link encap:Ethernet  HWaddr 18:d6:c7:0d:47:3c  
          inet addr:10.20.1.175  Bcast:10.20.1.255  Mask:255.255.255.0
          inet6 addr: fe80::281d:5f27:eb1b:8ded/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:38903 errors:0 dropped:0 overruns:0 frame:0
          TX packets:24689 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:51524413 (51.5 MB)  TX bytes:5503039 (5.5 MB)

iwconfig has been deprecated for a decade, but maybe you could elaborate
on what you feel is strange in this output?

Well there are 2 things:

1. The low bitrate - which I've confirmed doing actual data test, ie,
not just the number but the fact that the speeds are low.

2. The worse signal level/link quality.

I don't see either of those in the iwconfig output

The low TX bitrate is a known issue. Somehow the firmware rate handling
doesn't seem to work (or it works differently than I assumed) similar to
for the 8188eu. It's something I need to figure out when I have some time.

As for link quality is this something you measured or read out of 'iw' ?

Well there is:

Link Quality=26/70  Signal level=-84 dBm < - with rtl8xxxu driver

Link Quality=81/100  Signal level=100/100  Noise level=0/100 <-- with
vendor's driver. Another vector was the icon of network manager had only
2 bars with the in-tree driver and had full bars with out (yeah, this is
a bit subjective metric but it's the best i've got).

OK, the link reporting from rtl8xxxu isn't complete, so I wouldn't put
too much into this.

Cheers,
Jes