---

以前からやってみたいと思っていた LinkStation へ無線 LAN アダプタを接続しているが、 なかなかうまいこといかない。

driver ?

hostapd を起動すると、

root@qvl:~# hostapd /etc/hostapd/hostapd.conf
Configuration file: /etc/hostapd/hostapd.conf
ioctl[SIOCGIFFLAGS]: No such device
nl80211 driver initialization failed.
root@qvl:~#

となるが、、、

nl80211 driver が No such device ?

nl80211 driver って何?

CONFIG_LIB80211 ?

.config から 80211 を探すと、、、

root@qvl:/usr/src/linux-2.6.31.8# grep 80211 .config
CONFIG_CFG80211=m
# CONFIG_CFG80211_REG_DEBUG is not set
# CONFIG_LIB80211 is not set
CONFIG_MAC80211=m
CONFIG_MAC80211_DEFAULT_PS=y
CONFIG_MAC80211_DEFAULT_PS_VALUE=1
CONFIG_MAC80211_RC_MINSTREL=y
# CONFIG_MAC80211_RC_DEFAULT_PID is not set
CONFIG_MAC80211_RC_DEFAULT_MINSTREL=y
CONFIG_MAC80211_RC_DEFAULT="minstrel"
# CONFIG_MAC80211_LEDS is not set
# CONFIG_MAC80211_DEBUG_MENU is not set
# CONFIG_WLAN_PRE80211 is not set
CONFIG_WLAN_80211=y
# CONFIG_MAC80211_HWSIM is not set
root@qvl:/usr/src/linux-2.6.31.8#

DEBUG 関連はさておき、
CONFIG_LIB80211 が組み込まれていない。

CONFIG_LIB80211 って何?と、make menuconfig して / CONFIG_LIB80211 してみると、、

 .config - Linux Kernel v2.6.31.8 Configuration
 qqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqq
 lqqqqqqqqqqqqqqqqqqqqqqqqqqqq Search Results qqqqqqqqqqqqqqqqqqqqqqqqqqqqqk
 x Symbol: LIB80211_CRYPT_WEP [=n] x
 x Selected by: LIBIPW && NETDEVICES && !S390 && PCI && WLAN_80211 || HO x
 x x
 x x
 x Symbol: LIB80211_CRYPT_CCMP [=n] x
 x Selected by: LIBIPW && NETDEVICES && !S390 && PCI && WLAN_80211 || HO x
 x x
 x x
 x Symbol: LIB80211_CRYPT_TKIP [=n] x
 x Selected by: LIBIPW && NETDEVICES && !S390 && PCI && WLAN_80211 || HO x
 x x
 x x
 x Symbol: LIB80211_DEBUG [=n] x
 x Prompt: lib80211 debugging messages x
 x Defined at net/wireless/Kconfig:83 x
 x Depends on: NET && WIRELESS && LIB80211 x
 x Location: x
 x -> Networking support (NET [=y]) x
 x -> Wireless (WIRELESS [=y]) x
 x x
 x x
 x Symbol: LIB80211 [=n] x
 x Prompt: Common routines for IEEE802.11 drivers x
 x Defined at net/wireless/Kconfig:64 x
 x Depends on: NET && WIRELESS x
 x Location: x
 x -> Networking support (NET [=y]) x
 x -> Wireless (WIRELESS [=y]) x
 x Selected by: LIBERTAS && NETDEVICES && !S390 && WLAN_80211 || IPW2100 x
 x x
 x x
 tqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqq(100%)qqu
 x < Exit > x
 mqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqj

Common routines for IEEE802.11 drivers とある。

これ、入れなあかんのでは?

CONFIG_LIB80211 の有効化

Networking support → Wireless で、 Common routines for IEEE802.11 drivers をモジュールにする

 .config - Linux Kernel v2.6.31.8 Configuration
 qqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqq
 lqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqq Wireless qqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqk
 x Arrow keys navigate the menu. <Enter> selects submenus --->. x
 x Highlighted letters are hotkeys. Pressing <Y> includes, <N> excludes, x
 x <M> modularizes features. Press <Esc><Esc> to exit, <?> for Help, </> x
 x for Search. Legend: [*] built-in [ ] excluded <M> module < > x
 x lqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqk x
 x x --- Wireless x x
 x x <M> Improved wireless configuration API x x
 x x [ ] cfg80211 regulatory debugging x x
 x x [ ] Old wireless static regulatory definitions x x
 x x -*- Wireless extensions x x
 x x [*] Wireless extensions sysfs files x x
 x x <M> Common routines for IEEE802.11 drivers x x
 x x [ ] lib80211 debugging messages (NEW) x x
 x x <M> Generic IEEE 802.11 Networking Stack (mac80211) x x
 x x [*] enable powersave by default x x
 x x Rate control algorithm selection ---> x x
 x x [ ] Enable LED triggers x x
 x x [ ] Select mac80211 debugging features ---> x x
 x x x x
 x mqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqj x
 tqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqu
 x <Select> < Exit > < Help > x
 mqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqj

保存して終了

root@qvl:/usr/src/linux-2.6.31.8# diff -u .config_WLI-UC-GNM2_OK .config
--- .config_WLI-UC-GNM2_OK 2012年10月27日 20:45:00.759956397 +0900
+++ .config 2012年11月03日 09:14:17.983032777 +0900
@@ -1,7 +1,7 @@
 #
 # Automatically generated make config: don't edit
 # Linux kernel version: 2.6.31.8
-# Sat Oct 27 20:45:00 2012
+# Sat Nov 3 09:14:17 2012
 #
 CONFIG_ARM=y
 CONFIG_SYS_SUPPORTS_APM_EMULATION=y
@@ -649,7 +649,8 @@
 # CONFIG_WIRELESS_OLD_REGULATORY is not set
 CONFIG_WIRELESS_EXT=y
 CONFIG_WIRELESS_EXT_SYSFS=y
-# CONFIG_LIB80211 is not set
+CONFIG_LIB80211=m
+# CONFIG_LIB80211_DEBUG is not set
 CONFIG_MAC80211=m
 CONFIG_MAC80211_DEFAULT_PS=y
 CONFIG_MAC80211_DEFAULT_PS_VALUE=1
root@qvl:/usr/src/linux-2.6.31.8#

カーネルの再構築

root@qvl:/usr/src/linux-2.6.31.8# make -j2 uImage
	:
	:
root@qvl:/usr/src/linux-2.6.31.8# make modules
	:
	:
root@qvl:/usr/src/linux-2.6.31.8#

カーネルのインストール

root@qvl:/usr/src/linux-2.6.31.8# sudo make modules_install
	:
	:
root@qvl:/usr/src/linux-2.6.31.8# sudo cp arch/arm/boot/uImage /boot/uImage.buffalo
root@qvl:/usr/src/linux-2.6.31.8#

リブート

root@qvl:/usr/src/linux-2.6.31.8# sudo reboot

しばらくして、、、

Linux 2.6.31.8 (x60l.yamasita.jp) (pts/0)
qvl login: yasunari
Password:
Last login: Sat Nov 3 08:33:56 JST 2012 from x60l.yamasita.jp on pts/0
Linux qvl 2.6.31.8 #8 Sat Nov 3 09:16:01 JST 2012 armv5tel
The programs included with the Debian GNU/Linux system are free software;
the exact distribution terms for each program are described in the
individual files in /usr/share/doc/*/copyright.
Debian GNU/Linux comes with ABSOLUTELY NO WARRANTY, to the extent
permitted by applicable law.
yasunari@qvl:~$ uname -a
Linux qvl 2.6.31.8 #8 Sat Nov 3 09:16:01 JST 2012 armv5tel GNU/Linux
yasunari@qvl:~$

iwconfig の実行

wmaster0 の mode を Master にしてみる

root@qvl:~# iwconfig wmaster0 mode Master
Error for wireless request "Set Mode" (8B06) :
 SET failed on device wmaster0 ; Operation not supported.
root@qvl:~#

一緒。

wlan0 は、、、

root@qvl:~# iwconfig wlan0 mode Master
Error for wireless request "Set Mode" (8B06) :
 SET failed on device wlan0 ; Invalid argument.
root@qvl:~#

一緒。

やっぱりあかん?

hostpad の起動

root@qvl:~# hostapd /etc/hostapd/hostapd.conf
Configuration file: /etc/hostapd/hostapd.conf
ioctl[SIOCGIFFLAGS]: No such device
nl80211 driver initialization failed.
root@qvl:~#

一緒かぁ、、

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