‘ged4f697’ indicates that you have LT4 21.2. Just for future reference, since all versions that the Jetson currently support are Ubuntu 14.04, people distinguish the version by the Linux for Tegra (LT4) distribution revision.
The Grinch is a very good alternative (and probably the easiest path) for installing the 7260 and getting it to work.
However, just for completeness:
LT4 21.2 comes with the Intel drivers for wireless ( iwlwifi, iwldvm, and iwlmvm) already on board. However, it does not include the firmware needed by the 7260 card itself. The easiest way to install the firmware:
$ sudo apt-get install linux-firmware
Alternatively, if you already have the correct firmware code file on hand, you can copy it to the firmware directory:
$ sudo cp -v iwlwifi-7260-7.ucode /lib/firmware
With the firmware installed, there is another trick involved. In order to get the wireless to work, you must enable GPIO 191, which is used by the 7260:
echo 191 > /sys/class/gpio/export;
echo out > /sys/class/gpio/gpio191/direction;
echo 1 > /sys/class/gpio/gpio191/value;
The default is for the kernel to boot and always set this to OFF, so you must enable it on every boot. You do this by editing the file:
$ sudo gedit /etc/rc.local
and adding the above ‘echo’ lines before the last line in the file, which should be ‘exit 0’ . Make sure to save the file.
Note: In the Grinch kernel, the above procedure for GPIO 191 is not needed because it sets GPIO 191 by default.
After editing rc.local, reboot the Jetson. You should be able to see nearby wireless networks in the Network Manager menu. The Network Manager is the up/down arrow icon towards the upper right hand corner of the top toolbar. You should be able to connect to an open wireless network at this point.
Personally, I was not able to connect to a WPA/WPA2 protected network just by using the Network Manager menu and selecting a network because of some kind of bug.
However, you can manually configure a connection in that instance and it should work fine. You do this by the ‘Edit Connections…’ menu entry, and adding an entry.
You’ll need the SSID of the network you want to join.
You can get the SSID of nearby networks that the card can see (I’m sure there are prettier ways, but this one is valid)
$ sudo iwlist wlan0 scan
You’ll see the fields ‘Address’ and ‘ESSID’. Address is called BSSID when you ‘Edit Connections’ in the Network Manager, ESSID is called SSID in the Network Manager. Save your entry. Put in the password for the network in the ‘Wi-Fi Security’ tab. Make sure to save your new settings. You should be good to go at that point.
Jump on the wireless network, disable the ‘Wired Connection’ and take it for a spin.
Note: If you compile your own modules from kernel source for iwlwifi, iwldvm, and iwlmvm the Network Manager WPA connection dialog appears to work correctly.
All in all, it’s probably simplest to use the Grinch 21.2 kernel. This answer is here for those who only need to get the 7260 to work, and want the minimal impact on the stock configuration.
You can read more about a previous Intel 7260 install on LT4 21.1 install here, hopefully for a little context: