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From: Nick Owens <mischief@offblast.org>
Date: Sun, 12 Feb 2017 19:06:03 -0800
Message-ID: <CAH_zEu614wUaLskO4=QQO53hoZ8jy2LrLPF96nGh6ac+__sQ8Q@mail.gmail.com>
Subject: etheriwl short preamble
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X-Bullshit: non-blocking interface NoSQL backend 

i have been having trouble getting on my access point at home after a
long break from using 9front on my thinkpads.

with a little extra debug info in /sys/src/9/pc/wifi.c:/^recvassoc, i
noticed the returned code is '19' - 'Association denied due to
requesting station not supporting the short preamble option'.

here is a diff to turn it on for etheriwl, but i'm not sure what to do
for the other drivers using wifi.c.

http://okturing.com/src/1075/body