Gateway W350l无线网卡型号Intel(R) RRO/Wireless 3945ABG Network Connection
[sunshine@MagicLinux ~]$ lspci | grep 394504:00.0 Network controller: Intel Corporation PRO/Wireless 3945ABG [Golan] Network Connection (rev 02)
其实这个网卡在2.6.29的内核中就已经包含了，因此内核中需要有驱动[sunshine@MagicLinux ~]$ lsmod | grep 3945iwl3945 145712 0 iwlcore 163216 1 iwl3945mac80211 166664 2 iwl3945,iwlcoreled_class 4080 2 iwl3945,iwlcorelib80211 6416 2 iwl3945,iwlcorecfg80211 64972 3 iwl3945,iwlcore,mac80211
然后安装firmware： iwlwifi-3945-2.ucode 和一个守护程序：/sbin/ipw3945d
内核加载 iwl3945 后会加载 iwlwifi-3945-1.ucode 然后加载 iwlwifi-3945-2.ucode (API2)这样就识别了。启动系统的时候需启动/sbin/ipw3945d
更换firmware后，，如果想要重新识别网卡，可以重新挂载一下内核模块modprobe -r iwl3945modprobe iwl3945
问题是识别了但是网卡却不能up查看网卡状态ifconfig中没有wlan0ifconfig wlan0 却是能显示wlan0的信息，这有些奇怪。[sunshine@MagicLinux ~]$ iwlist wlan0 powerwlan0 Current mode:off查看电源是关的，但是硬件开关是开的，我保证。
[sunshine@MagicLinux ~]$ sudo iwconfig wlan0 power on[sudo] password for sunshine: Error for wireless request “Set Power Management” (8B2C) :SET failed on device wlan0 ; Operation not supported.[sunshine@MagicLinux ~]$ sudo iwconfig wlan0 txpower on开启电源失败…
此时监测message可以看到iwl3945 0000:04:00.0: Radio disabled by HW RF Kill switch总是说硬件开关关闭…
我们看一下整体的启动信息。[sunshine@MagicLinux ~]$ dmesg | grep 3945 –coloriwl3945: Intel(R) PRO/Wireless 3945ABG/BG Network Connection driver for Linux, 1.2.26kdiwl3945: Copyright(c) 2003-2009 Intel Corporationiwl3945 0000:04:00.0: PCI INT A -> GSI 17 (level, low) -> IRQ 17iwl3945 0000:04:00.0: setting latency timer to 64iwl3945 0000:04:00.0: Tunable channels: 13 802.11bg, 4 802.11a channelsiwl3945 0000:04:00.0: Detected Intel Wireless WiFi Link 3945ABGiwl3945 0000:04:00.0: irq 30 for MSI/MSI-Xphy0: Selected rate control algorithm ‘iwl-3945-rs’iwl3945 0000:04:00.0: Radio Frequency Kill Switch is On:iwl3945 0000:04:00.0: firmware: requesting iwlwifi-3945-2.ucodeiwl3945 0000:04:00.0: loaded firmware version 15.32.2.9iwl3945 0000:04:00.0: Radio disabled by HW RF Kill switch
真是闷，每次都让我碰上这么闷的问题。最后google发现这个开关不太好用，需要用fn+F2开启，哦my god！
流过泪的眼睛更明亮，滴过血的心灵更坚强!
