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First login to the Beagle and install tcpdump. Use your Beagle's
IP address.
.. code-block:: bash
.. code-block::
host$ ssh 192.168.7.2
bone$ sudo apt update
...
...
@@ -357,7 +343,7 @@ IP address.
Next, create a named pipe and have wireshark read from it.
.. code-block:: bash
.. code-block::
host$ mkfifo /tmp/remote
host$ wireshark -k -i /tmp/remote
...
...
@@ -365,7 +351,7 @@ Next, create a named pipe and have wireshark read from it.
Then, run tcpdump over ssh on your remote machine and redirect the
packets to the named pipe:
.. code-block:: bash
.. code-block::
host$ ssh root@192.168.7.2 "tcpdump -s 0 -U -n -w - -i any not port 22" > /tmp/remote
...
...
@@ -448,11 +434,32 @@ Googling tmp006 and tmp007 shows that they are Infrared Thermopile Sensors, not
Browse over to http://kernel.org to see if there are tmp114 drivers in the newer versions of the kernel.
The first line in the table is **mainline**. Click on the **browse** link on the right.
.. figure:: figures/kernel.org.png
:align: center
:alt: http://kernel.org
Here you will see the top level of the Linux sourse tree for the *mainline* version of the kernel.
.. figure:: figures/kernel.org.drivers.png
:align: center
:alt: http://kernel.org drivers
Click on **drivers** and then **iio**. Finally, since tmp114 is a temperture sensor, click on **temperature**.
.. figure:: figures/kernel.org.tmp117.png
:align: center
:alt: http://kernel.org tmp117
Here you see all the source code for the iio temperature drivers for the mainline version of the kernel.
We've seen tmp006 and tmp007 as before, tmp117 is new. Maybe it will work. Click on **tmp117.c** to see the code.
Looks like it also works for the tmp116 too. Let's try convering it to work with the tmp114.
Looks like it also works for the tmp116 too.
.. figure:: figures/kernel.org.plain.png
:align: center
:alt: http://kernel.org plain
Let's try convering it to work with the tmp114.
A quick way to copy the code to the bone is to right-click on the **plain** link and select *Copy link address*.
Then, on the bone enter **wget** and paste the link. Mine looks like the following, yours will be similar.
...
...
@@ -718,50 +725,10 @@ Now, sync changes with upstream:
bone$ git fetch upstream
bone$ git pull upstream main
Using Docker (Podman)
^^^^^^^^^^^^^^^^^^^^^
It is probably easies to use docker (or podman) if you are already familiar with container workflow.
The repository contains a helper script `docker-build-env.sh` which creates ephemeral container and drops you into bash inside. The project is mouted at `/build/docs.beagleboard.org`.
.. note::
This section of docs assume that you are using rootless docker or podman. In case of rootful docker, you might run into permission issues
.. code-block:: bash
./docker-build-env.sh
cd /build/docs.beagleboard.org
make clean
To generate HTML output of docs:
.. code-block:: bash
make html
To generate PDF output of docs:
.. code-block:: bash
make latexpdf
To preview docs on your local machine:
.. code-block:: bash
python3 -m http.server -d _build/html/
Downloading Sphinx
^^^^^^^^^^^^^^^^^^
Skip this section if you are using docker as shown above.
Run the following to download and setup Sphinx locally.
.. note::
This will take a while, it loads some 6G bytes.
Run the following to download Sphinx. Note: This will take a while, it loads
some 6G bytes.
.. code-block:: bash
...
...
@@ -769,21 +736,22 @@ Run the following to download and setup Sphinx locally.
