Debian 7 install broadcom wifi driver

Installation

Debian 7 "Wheezy"

1. Add a "non-free" component to /etc/apt/sources.list, for example:

   # Debian 7 "Wheezy"
   deb http://http.debian.net/debian/ wheezy main contrib non-free

2. Update the list of available packages and install the firmware-brcm80211 package:

   # apt-get update && apt-get install firmware-brcm80211

3. As the driver may already be loaded, reinsert the module to access installed firmware:

   # modprobe -r brcmsmac ; modprobe brcmsmac

4. Configure your wireless interface as appropriate.

for BCM4313

in /etc/apt/sources.list 

deb http://ftp.es.debian.org/debian/ wheezy main contrib non-free
deb-src http://ftp.es.debian.org/debian/ wheezy main contrib non-free
deb http://security.debian.org/ wheezy/updates main contrib non-free
deb-src http://security.debian.org/ wheezy/updates main contrib non-freedeb http://ftp.es.debian.org/debian/ wheezy-updates main contrib non-free
deb-src http://ftp.es.debian.org/debian/ wheezy-updates main contrib non-free

apt-get update

apt-get install linux-headers-$(uname -r|sed 's,[^-]*-[^-]*-,,') broadcom-sta-dkms

modprobe -r b44 b43 b43legacy ssb brcm80211

modprobe wl
restart PC