Sensoray 2251 Linux Ver.X - Manual (Page 3)

Software
Feature Summary
The 2250 uses the standard USB drivers for Linux through the video4linux2 (V4L2)
library. The driver supports MPEG capture through the V4L2 API, and can be used with
any video capture application that supports V4L2. The driver has ALSA audio support.
Installation
The software may be distributed on a CD or downloaded from the Sensoray’s web site.
If the file is downloaded, it will need to be unzipped into a folder on the local drive prior
to connecting the 2250 to the USB port.
The software must be compiled in a v4l-dvb source tree before it can be installed. The
makefile will automatically download the v4l-dvb source tree from Mercurial in tar.bz2
format and compile the drivers. If the installation machine is isolated from the
internet, download the v4l-dvb source package from http://linuxtv.org/hg/v4l-dvb (click
on the “bz2” link and save as “v4l-dvb.tar.bz2”) and copy it to the installation machine
into the sensoray-v4l2-driver-patchX directory.
Kernel versions supported by the v4l-dvb package will work. At the time of this
writing, this is 2.6.10 or later. The kernel configuration requires USB support, I2C
support, ALSA sound support (OSS emulation is optional, but recommended.) The v4l-
dvb package is no longer being maintained however, and may not work on kernels
newer than 2.6.35.
The Linux kernel headers must be installed. On Ubuntu, the Linux Ubuntu module
headers will also be required. Type “apt-get install linux-headers-lum-`uname -r`” if it
is not currently installed. On other distributions, install linux-headers from the CD or
otherwise. Missing or incorrect kernel headers may result in errors during the “make”
step below.
Setup is performed as follows.
1) Untar the 2250 package. “tar xzf sensoray-v4l2-driver-patchX.tar.gz”
2) Type “cd sensoray-v4l2-driver-patchX”
3) Type “./install.sh”. This will download the v4l-dvb sources, apply the patches,
and compile the drivers. This will also install the kernel modules and copy the
firmware files to /lib/firmware.
4) Plug in 2250 to USB port.