Re: WiFi Refresh -- Report 3

[Jason Thorpe <thorpej%me.com@localhost>]

> On Aug 3, 2018, at 2:24 PM, Phil Nelson <phil%NetBSD.org@localhost> wrote:
> 
> On Friday 03 August 2018 14:15:06 Jason Thorpe wrote:
>>>      2)  Selecting an open network now works.   An issue here is the urtwn
>>>           driver (and I suspect all drivers will need to deal with this), the 
>>>           driver rssi (Receive signal strength indicator) in the driver
>>>           is is dBm, numbers appear to be between -100 to 20.   The 
>>>           FreeBSD network  selection process is checking for rssi to be
>>>           between 8 and 40.   I currently add 80 in urtwn when passing rssi
>>>           to the FreeBSD  framework.
>> 
>> Probably worth taking a look at the FreeBSD urtwn driver to see what they're doing.
>> 
> 
> I have been reading their code, but it is a completely different code base
> from our our urtwn code and without hardware documents (any one have
> some to share????) it is a little difficult seeing what they are doing.  I will
> look closer for this issue for the rssi at some point.
> 
> --Phil
> 
> p.s.  FreeBSD only has a urtw driver and it covers a lot fewer devices than
> the NetBSD urtwn driver.

Oh, interesting.  urtwn also exists in OpenBSD, and I think a FreeBSD guy has been doing work on it.  "rtw" and "rtwn" are totally different devices, FWIW.

-- thorpej