LinuxQuestions.org - wpa_supplicant: ioctl[SIOCSIWAUTH]: Operation not supported

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wpa_supplicant: ioctl[SIOCSIWAUTH]: Operation not supported

It used to run fine on Slackware 11.0 with ipw3945. I upgraded to 12.0 and use iwl3945 now, which uses wlan0 instead of eth1.

Although it seems to work, I'm getting the following message on the start up:

Code:

root@alkos333_TPT60:/var/run# !wpa_supplicant

wpa_supplicant -B -i wlan0 -D wext -c /etc/wpa_supplicant.conf 

ioctl[SIOCSIWAUTH]: Operation not supported

WEXT auth param 4 value 0x0 - ioctl[SIOCSIWAUTH]: Operation not supported

Here is a little bit more info from the commands I ran:

Code:

root@alkos333_TPT60:/var/run# lsof /var/run/wpa_supplicant/wlan0 

COMMAND    PID USER  FD  TYPE    DEVICE SIZE  NODE NAME

wpa_suppl 8087 root    6u  unix 0xef787040      39613 /var/run/wpa_supplicant/wlan0

Code:

root@alkos333_TPT60:/var/run# grep IEEE80211 /usr/src/linux-$(uname -r)/.config

CONFIG_IEEE80211=m

# CONFIG_IEEE80211_DEBUG is not set

CONFIG_IEEE80211_CRYPT_WEP=m

CONFIG_IEEE80211_CRYPT_CCMP=m

CONFIG_IEEE80211_CRYPT_TKIP=m

# CONFIG_IEEE80211_SOFTMAC is not set

if i remember correctly, your command should be
wpa_supplicant -B -iwlan0 -Dwext -c/etc/wpa_supplicant.conf
(no spaces after -i -D -c)
try it. Maybe the problem will disappear.

No, that doesn't make any difference because wpa_supplicant seems to be running and I'm actually connected to a WPA AP right now. I'm just trying to figure out how to get rid of that error/warning.

IIRC you can get more verbose output from wpa_supplicant by adding -dd or -ddd to the command. Maybe this brings some more information up.

Update your madwifi driver

Use the ticket 462 of madwifi to update your madwifi driver so that it can adhere to WE-18 standard

But I'm not using a madwifi driver though, I'm using iwl3945?

The error usually occurs when the driver does not support a particular IOCTL. Just downloaded ipw3945 version 1.2.2 and verified that the SIGCSIWAUTH is supported by this driver. Download this driver and compile it with WIRELESS_EXT flag set to 18 and it should work.

I don't like ipw3945 because it requires a regulatory daemon and just isn't as stable as iwl3945. I have already reported this to iwl3945, so hopefully it will be fixed soon.