Hello list,
I just started experimenting with the most recent compat-wireless ath5k
driver. What I'm testing is running two virtual interfaces, one in AP
mode and one STA. It appears that I can only get both interfaces working
at the same time if they both use the same channel. Is this how it is
suppose to work?
For example, I setup a linksys AP to use channel 5 and then configured
wpa_supplicant to connect to this AP using the virtual STA. This works
fine. Now if I try to start hostapd with the hostapd.conf configured
for channel 11, it complains:
# hostapd -B /tmp/hostapd.conf
Configuration file: /tmp/hostapd.conf
Could not set channel for kernel driver
wlan0: Unable to setup interface.
rmdir[ctrl_interface]: No such file or directory
If I change hostapd.conf to use channel 5, it will start and both AP and
STA connect and work as expected.
# hostapd -B /tmp/hostapd.conf
Configuration file: /tmp/hostapd.conf
Using interface wlan0 with hwaddr 00:02:6f:21:e8:97 and ssid 'mytestap'
If anyone can shed some light on this, it would be much appreciated.
Here is the dmesg when I load ath5k (I'm running kernel 2.6.31.12-rt21):
[ 126.242373] Compat-wireless backport release:
compat-wireless-2011-06-14-3-g53583b5
[ 126.242510] Backport based on linux-next.git next-20110621
[ 126.354103] cfg80211: Calling CRDA to update world regulatory domain
[ 126.483585] ath5k 0000:02:05.0: PCI INT A -> GSI 18 (level, low) -> IRQ 18
[ 126.483796] ath5k 0000:02:05.0: registered as 'phy0'
[ 126.926472] ath: EEPROM regdomain: 0x0
[ 126.926479] ath: EEPROM indicates default country code should be used
[ 126.926485] ath: doing EEPROM country->regdmn map search
[ 126.926495] ath: country maps to regdmn code: 0x3a
[ 126.926502] ath: Country alpha2 being used: US
[ 126.926508] ath: Regpair used: 0x3a
[ 127.061373] ieee80211 phy0: Selected rate control algorithm 'minstrel_ht'
[ 127.062383] ath5k phy0: Atheros AR5213A chip found (MAC: 0x59, PHY: 0x43)
[ 127.062484] ath5k phy0: RF5112B multiband radio found (0x36)
Thanks,
Tom
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