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plut0
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Joined: 21 Dec 2004
Posts: 272
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 Posted: Tue Jan 11, 2011 1:09 pm Post subject: wifi stopped working after kernel upgrade [RESOLVED] |
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I have been using my ath5k wireless card as an access point for some time now. Just yesterday I upgraded my kernel 2.6.28-hardened-r6 to kernel-2.6.36-hardened-r6 and now it is broke.
Apparently madwifi no longer works for ath5k and you are forced to use nl80211 under the newer kernel. For whatever reason the driver is throwing errors attempting to bring the NIC online.
I can add a virtual device without error:
| Code: | # iw dev wlan0 interface add ath0 type __ap
# iwconfig ath0
ath0 IEEE 802.11bg Mode:Master Tx-Power=off
Retry long limit:7 RTS thr:off Fragment thr:off
Power Management:off |
When start hostapd I get the following errors:
| Code: | # /etc/init.d/hostapd start
* Starting ath0
RTNETLINK answers: Unknown error 132
RTNETLINK answers: Unknown error 132
RTNETLINK answers: Unknown error 132
* Configuring wireless network for ath0
Error for wireless request "Set Encode" (8B2A) :
SET failed on device ath0 ; Operation not supported.
Error for wireless request "Set ESSID" (8B1A) :
SET failed on device ath0 ; Operation not supported.
* ath0 does not support setting ESSID to "gentoo"
* Failed to configure wireless for ath0
* ERROR: cannot start hostapd as net.ath0 could not start |
/etc/hostapd/hostapd.cfg:
| Code: | interface=ath0
driver=nl80211
logger_syslog=-1
logger_syslog_level=2
logger_stdout=-1
logger_stdout_level=1
dump_file=/tmp/hostapd0.dump
ctrl_interface=/var/run/hostapd
ctrl_interface_group=0
ignore_broadcast_ssid=1
ssid=gentoo
hw_mode=g
macaddr_acl=1
accept_mac_file=/etc/hostapd/hostapd.accept
auth_algs=1
wpa=0
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/etc/conf.d/net
| Code: | mode_ath0=( "master" )
config_ath0=( "192.168.2.1/24" )
essid_ath0=( "gentoo" ) |
Last edited by plut0 on Wed Jan 12, 2011 3:45 pm; edited 1 time in total |
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plut0
Apprentice
Joined: 21 Dec 2004
Posts: 272
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| Posted: Wed Jan 12, 2011 3:45 pm Post subject: |
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I fixed this, I had to start the interface as ad-hoc and let hostapd set it as a master. I also had to run rfkill to unblock the wireless.
/etc/conf.d/net:
| Code: | config_ath0=( "192.168.2.1/24" )
mode_ath0=( "ad-hoc" )
essid_ath0=( "gentoo" )
preup() {
if [[ ${IFACE} == "ath0" ]]; then
iw dev wlan0 interface add ${IFACE} type __ap
rfkill unblock all
fi
}
postdown() {
if [[ ${IFACE} == "ath0" ]]; then
iw dev ${IFACE} del
iw dev mon.${IFACE} del
fi
} |
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