Installing wifi card on debian

gistfile1.txt

1. use dmesg to find out the device:

[  987.836474] iwl3945 0000:0c:00.0: firmware: agent aborted loading iwlwifi-3945-2.ucode (not found?)
[  987.844596] iwl3945 0000:0c:00.0: firmware: agent aborted loading iwlwifi-3945-1.ucode (not found?)
[  987.844755] iwl3945 0000:0c:00.0: Could not read microcode: -2

2. add non-fee repo:

# head /etc/apt/sources.list
# 

deb http://ftp.de.debian.org/debian/ wheezy main contrib non-free
deb-src http://ftp.de.debian.org/debian/ wheezy main

3. search the driver:
# apt-cache search iwlwifi

4. install the driver:
# apt-get install firmware-iwlwifi