2253 Raspberry Pi

Compiling the 2253 driver on a Raspberry Pi board

Assuming Debian Raspbian installed, verify that build-essential and dkms packages are installed.

 sudo apt-get install build-essential dkms

Choose one of the following methods to install the kernel headers:

• Install the kernel headers through apt (works as of 25 Mar 2019)

 sudo apt install raspberrypi-kernel-headers

• Find out the version of the kernel using uname -r, then download and install headers package for version of kernel from https://www.niksula.hut.fi/~mhiienka/Rpi/linux-headers-rpi/

 sudo dpkg -i ./linux-headers-4.1.18+_4.1.18+-2_armhf.deb
 sudo apt-get install -f

• Use the rpi-source command to install kernel source (recommended if the other option gives an error) See also: https://www.raspberrypi.org/forums/viewtopic.php?t=76261

 sudo rpi-source

Compile the driver:

 sudo make -C driver
 sudo make install

If the modprobe fails, the install step may have put the driver in the wrong modules directory if the kernel version has '+' at the end. Fix by doing:

 sudo mv /lib/modules/4.1.18/extra /lib/modules/4.1.18+/
 sudo depmod -a
 sudo modprobe s2253

Note: a better way may be to follow these instructions: http://billauer.co.il/blog/2013/10/version-magic-insmod-modprobe-force/

In order to use gstreamer, you may need to install the following packages:

 sudo apt-get install gstreamer1.0-tools gstreamer1.0-plugins-base gstreamer1.0-plugins-good gstreamer1.0-plugins-bad gstreamer1.0-omx

Here is an example gstreamer command:

 gst-launch-1.0 v4l2src device=/dev/video0 ! \
   'video/x-h264,standard=255,format=MP42,width=720,height=480,framerate=30000/1001,pixelformat=h264,profile=high' ! \
   h264parse ! mpegtsmux ! filesink location=recording.mp4

Note: in order for the recording to be seekable, first you must do this:

 # Set H.264 format (to enable codec controls)
 v4l2-ctl -v pixelformat='H264'
 
 # Set H.264 IDR frames (to allow seeking in recordings)
 v4l2-ctl -c video_h_264_idr_period=1