Sending ps poll maunally with hostapd

Jouni Malinen j
Tue Dec 16 03:29:49 PST 2008

On Tue, Dec 16, 2008 at 11:11:15AM +0200, David Shwatrz wrote:

> I had looked in the code and saw that the mac80211_hwsim module
> uses debugds.

> (I don't know why I have phy0 and phy1 - I have only one wireless nic;
> should it be
> always like this).

What exactly are you trying to do? This comment here seems to indicate
that there could be some misunderstanding on what mac80211_hwsim is.. It
has nothing to do with a real wireless NIC and is only used to test
mac80211 (and higher layer of the stack) in a software simulated

> now
> cat /sys/kernel/debug/ieee80211/phy0/hwsim/ps
> gives 0 (and also the same on the second entry).
> I tried:
> echo "1" > /sys/kernel/debug/ieee80211/phy1/hwsim/ps
> and echo "1" > /sys/kernel/debug/ieee80211/phy0/hwsim/ps
> but I ** do not** reach the hwsim_send_ps_poll() method.
> I know it for sure because I added a printk in hwsim_send_ps_poll()
> in mac80211_hwsim.c and built it; but I don't see it.

Are you using phy0 as the client radio and phy1 as the AP? If not, this
won't work.

Jouni Malinen                                            PGP id EFC895FA

More information about the Hostap mailing list