Hi!
I just got a "Centrino Advanced-N 6230" half-size mini-pcie card
(using iwn6000g2bfw.ko firmware, my Dell Precision M4500 laptop
came with an unsupported Broadcom BCM4313:
https://laptop.bsdgroup.de/freebsd/index.html?action=show_laptop_detail&laptop=13061
), and found channel switching didn't work in monitor mode, the
patch below seems to fix it - also at:
http://people.freebsd.org/~nox/tmp/patch-iwn-channel-monitor.txt
(I also applied the two patches from the `"Intel Centrino Advanced-N +
WiMAX 6250" doesn't work' thread tho I'm not 100% sure they are needed
for this nic:
http://markmail.org/message/exik7phjs2j7pnsi
and
http://docs.freebsd.org/cgi/mid.cgi?CAAgh0_bL7K3PZVAZxPV8JwdhnopOvdRp0Z+xHU-CfGba5bz1Kw
)
And here is the channel switching patch:
--- src/sys/dev/iwn/if_iwn.c.orig
+++ src/sys/dev/iwn/if_iwn.c
@@ -6984,12 +6984,24 @@ iwn_set_channel(struct ieee80211com *ic)
const struct ieee80211_channel *c = ic->ic_curchan;
struct ifnet *ifp = ic->ic_ifp;
struct iwn_softc *sc = ifp->if_softc;
+ int error;
IWN_LOCK(sc);
sc->sc_rxtap.wr_chan_freq = htole16(c->ic_freq);
sc->sc_rxtap.wr_chan_flags = htole16(c->ic_flags);
sc->sc_txtap.wt_chan_freq = htole16(c->ic_freq);
sc->sc_txtap.wt_chan_flags = htole16(c->ic_flags);
+
+ /*
+ * Only need to set the channel in Monitor mode. AP scanning and auth
+ * are already taken care of by their respective firmware commands.
+ */
+ if (ic->ic_opmode == IEEE80211_M_MONITOR) {
+ error = iwn_config(sc);
+ if (error != 0)
+ device_printf(sc->sc_dev,
+ "error %d settting channel\n", error);
+ }
IWN_UNLOCK(sc);
}
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