Asus A53SV无线网卡的问题！！！

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各位好：
我的笔记本是Asus A53SV，无线网卡的型号是：Intel Centrino wireless-N 100 BGN，我的系统是Debian 6.06。我想问下为什么我iwlconfig会出现wlan0 no wireless extensions.我把网上下再的我这块网卡的.ucode文件放在了/lib/firmware下。没有无线网卡很痛苦啊！！！

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dmesg|grep iwl的结果是
[ 6.110937] iwlwifi 0000:03:00.0: pci_resource_len = 0x00002000
[ 6.110940] iwlwifi 0000:03:00.0: pci_resource_base = ffffc9000586c000
[ 6.110943] iwlwifi 0000:03:00.0: HW Revision ID = 0x0
[ 6.111408] iwlwifi 0000:03:00.0: irq 48 for MSI/MSI-X
[ 6.165476] iwlwifi 0000:03:00.0: loaded firmware version 39.31.5.1 build 32895
[ 6.347336] iwldvm: Intel(R) Wireless WiFi Link AGN driver for Linux, in-tree:
[ 6.347340] iwldvm: Copyright(c) 2003-2012 Intel Corporation
[ 6.347368] iwlwifi 0000:03:00.0: CONFIG_IWLWIFI_DEBUG disabled
[ 6.347371] iwlwifi 0000:03:00.0: CONFIG_IWLWIFI_DEBUGFS disabled
[ 6.347375] iwlwifi 0000:03:00.0: CONFIG_IWLWIFI_DEVICE_TRACING disabled
[ 6.347378] iwlwifi 0000:03:00.0: CONFIG_IWLWIFI_DEVICE_TESTMODE disabled
[ 6.347381] iwlwifi 0000:03:00.0: CONFIG_IWLWIFI_P2P enabled
[ 6.347385] iwlwifi 0000:03:00.0: Detected Intel(R) Centrino(R) Wireless-N 100 BGN, REV=0x6C
[ 6.347597] iwlwifi 0000:03:00.0: L1 Enabled; Disabling L0S
[ 6.354933] iwlwifi 0000:03:00.0: RF_KILL bit toggled to enable radio.
[ 6.369010] iwlwifi 0000:03:00.0: device EEPROM VER=0x166, CALIB=0x6
[ 6.369014] iwlwifi 0000:03:00.0: Device SKU: 0x50
[ 6.369017] iwlwifi 0000:03:00.0: Valid Tx ant: 0x1, Valid Rx ant: 0x3
[ 6.515765] ieee80211 phy0: Selected rate control algorithm 'iwl-agn-rs'
[ 10.722035] iwlwifi 0000:03:00.0: L1 Enabled; Disabling L0S
[ 10.729424] iwlwifi 0000:03:00.0: Radio type=0x0-0x0-0x3
[ 10.786406] iwlwifi 0000:03:00.0: L1 Enabled; Disabling L0S
[ 10.793761] iwlwifi 0000:03:00.0: Radio type=0x0-0x0-0x3
[ 251.060924] iwlwifi 0000:03:00.0: L1 Enabled; Disabling L0S
[ 251.068326] iwlwifi 0000:03:00.0: Radio type=0x0-0x0-0x3
[ 656.946807] iwlwifi 0000:03:00.0: L1 Enabled; Disabling L0S
[ 656.954346] iwlwifi 0000:03:00.0: Radio type=0x0-0x0-0x3
[ 756.735350] iwlwifi 0000:03:00.0: L1 Enabled; Disabling L0S
[ 756.742710] iwlwifi 0000:03:00.0: Radio type=0x0-0x0-0x3
[ 792.593607] iwlwifi 0000:03:00.0: L1 Enabled; Disabling L0S
[ 792.601015] iwlwifi 0000:03:00.0: Radio type=0x0-0x0-0x3