Index: head/sys/dev/usb/wlan/if_zyd.c
===================================================================
--- head/sys/dev/usb/wlan/if_zyd.c
+++ head/sys/dev/usb/wlan/if_zyd.c
@@ -164,6 +164,8 @@
 static int	zyd_loadfirmware(struct zyd_softc *);
 static void	zyd_scan_start(struct ieee80211com *);
 static void	zyd_scan_end(struct ieee80211com *);
+static void	zyd_getradiocaps(struct ieee80211com *, int, int *,
+		    struct ieee80211_channel[]);
 static void	zyd_set_channel(struct ieee80211com *);
 static int	zyd_rfmd_init(struct zyd_rf *);
 static int	zyd_rfmd_switch_radio(struct zyd_rf *, int);
@@ -334,7 +336,6 @@
 	struct usb_attach_arg *uaa = device_get_ivars(dev);
 	struct zyd_softc *sc = device_get_softc(dev);
 	struct ieee80211com *ic = &sc->sc_ic;
-	uint8_t bands[IEEE80211_MODE_BYTES];
 	uint8_t iface_index;
 	int error;
 
@@ -388,15 +389,14 @@
 	        | IEEE80211_C_WPA		/* 802.11i */
 		;
 
-	memset(bands, 0, sizeof(bands));
-	setbit(bands, IEEE80211_MODE_11B);
-	setbit(bands, IEEE80211_MODE_11G);
-	ieee80211_init_channels(ic, NULL, bands);
+	zyd_getradiocaps(ic, IEEE80211_CHAN_MAX, &ic->ic_nchans,
+	    ic->ic_channels);
 
 	ieee80211_ifattach(ic);
 	ic->ic_raw_xmit = zyd_raw_xmit;
 	ic->ic_scan_start = zyd_scan_start;
 	ic->ic_scan_end = zyd_scan_end;
+	ic->ic_getradiocaps = zyd_getradiocaps;
 	ic->ic_set_channel = zyd_set_channel;
 	ic->ic_vap_create = zyd_vap_create;
 	ic->ic_vap_delete = zyd_vap_delete;
@@ -2865,6 +2865,19 @@
 }
 
 static void
+zyd_getradiocaps(struct ieee80211com *ic,
+    int maxchans, int *nchans, struct ieee80211_channel chans[])
+{
+	uint8_t bands[IEEE80211_MODE_BYTES];
+
+	memset(bands, 0, sizeof(bands));
+	setbit(bands, IEEE80211_MODE_11B);
+	setbit(bands, IEEE80211_MODE_11G);
+	ieee80211_add_channel_list_2ghz(chans, maxchans, nchans,
+	    zyd_chan_2ghz, nitems(zyd_chan_2ghz), bands, 0);
+}
+
+static void
 zyd_set_channel(struct ieee80211com *ic)
 {
 	struct zyd_softc *sc = ic->ic_softc;
Index: head/sys/dev/usb/wlan/if_zydreg.h
===================================================================
--- head/sys/dev/usb/wlan/if_zydreg.h
+++ head/sys/dev/usb/wlan/if_zydreg.h
@@ -421,6 +421,10 @@
 #define ZYD_CR254		0x93f8
 #define ZYD_CR255		0x93fc
 
+/* nitems(ZYD_*_CHANTABLE) */
+static const uint8_t zyd_chan_2ghz[] =
+	{ 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14 };
+
 /* copied nearly verbatim from the Linux driver rewrite */
 #define	ZYD_DEF_PHY							\
 {									\