xbmc ~ # dmesg | grep iwl
[    1.350989] iwlwifi 0000:02:00.0: pci_resource_len = 0x00002000
[    1.352756] iwlwifi 0000:02:00.0: pci_resource_base = ffffc9000036c000
[    1.354481] iwlwifi 0000:02:00.0: HW Revision ID = 0x0
[    1.356469] iwlwifi 0000:02:00.0: irq 44 for MSI/MSI-X
[    1.356697] iwldvm: Intel(R) Wireless WiFi Link AGN driver for Linux, in-tree:
[    1.358452] iwldvm: Copyright(c) 2003-2012 Intel Corporation
[    6.544833] iwlwifi 0000:02:00.0: loaded firmware version 39.31.5.1 build 35138
[    6.545116] iwlwifi 0000:02:00.0: CONFIG_IWLWIFI_DEBUG disabled
[    6.545122] iwlwifi 0000:02:00.0: CONFIG_IWLWIFI_DEBUGFS disabled
[    6.545126] iwlwifi 0000:02:00.0: CONFIG_IWLWIFI_DEVICE_TRACING disabled
[    6.545131] iwlwifi 0000:02:00.0: CONFIG_IWLWIFI_DEVICE_TESTMODE disabled
[    6.545135] iwlwifi 0000:02:00.0: CONFIG_IWLWIFI_P2P enabled
[    6.545140] iwlwifi 0000:02:00.0: Detected Intel(R) Centrino(R) Wireless-N 1000 BGN, REV=0x6C
[    6.545279] iwlwifi 0000:02:00.0: L1 Enabled; Disabling L0S
[    6.565635] iwlwifi 0000:02:00.0: device EEPROM VER=0x15d, CALIB=0x6
[    6.565642] iwlwifi 0000:02:00.0: Device SKU: 0x50
[    6.565646] iwlwifi 0000:02:00.0: Valid Tx ant: 0x1, Valid Rx ant: 0x3
[    6.565878] ieee80211 phy0: Selected rate control algorithm 'iwl-agn-rs'
[    9.763790] iwlwifi 0000:02:00.0: L1 Enabled; Disabling L0S
[    9.771133] iwlwifi 0000:02:00.0: Radio type=0x0-0x0-0x3
[    9.903799] iwlwifi 0000:02:00.0: L1 Enabled; Disabling L0S
[    9.911144] iwlwifi 0000:02:00.0: Radio type=0x0-0x0-0x3


xbmc ~ # cat /etc/wpa_supplicant/wpa_supplicant.conf
network={
        # ssid is necessary for psk
        ssid="peanet"
	# You need double quotes
        psk="............"
        key_mgmt=WPA-PSK
        priority=1
}