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--- ds:comedi [2015/08/05 11:13]
tmilosic [Comedilib]
+++ ds:comedi [2015/08/06 16:07] (current)
tmilosic
@@ Line 2: / Line 2: @@
 [[http://www.comedi.org|Comedi]] provides a common Linux interface to certain DAQ hardware, \\
-typical PCI digital and analog I/O cards and is actively developed since 1999.
+typical PCI digital and analog I/O cards and is actively developed since 1998.
 It consists of
@@ Line 11: / Line 11: @@
 ==== Drivers ====
-Comedi and available drivers are integrated into the Linux kernel.\\
+The newest sources for the Comedi and driver modules\\
-For some reasons Comedi is still located in the staging tree.\\
+are available from the official Git repository.
+  git clone git://comedi.org/git/comedi/comedilib.git
+Use //autotools// to generate the //configure// script
+  ./autogen.sh
+To display all available options
+  ./configure --help
+[The following assumes you're in a maintenance chroot and are\\
+installing the modules directly to the diskless system.\\
+If you want to build and install the drivers to a different \\
+directory, for example '/srv/diskless/fec/arch/L866_64/lib/<kernel-version>/'\\
+you have to specify --with-modulesdir=<DIR>]
+Assembling the Makefile for 64-bit Linux 3.10.82-rt89 with RT preempt patch
+  ./configure --with-rtlinuxdir=/usr/src/kernels/3.10.82-rt89 \
+              --with-kernel-release=3.10.82-rt89 --with-rpm-target=x86_64
+Compiling
+  make
+Installing
+  make install
+This will install the modules to
+  /lib/modules/<kernel-version>/...
+where kernel-version is 3.10.82-rt89 in this example.
+=== Linux In-Tree Comedi Support ===
+Comedi and available drivers are also integrated into the Linux kernel \\
+since 2.6.30, located in the experimental staging tree.\\
+This might be the best choice unless the kernel version of choice\\
+lacks required hardware support or contains bugs stopping its use.\\
+In that case we should use the out-of-tree Git version as described above.\\
 To enable Comedi and build the //comedi// module, setup the \\
@@ Line 20: / Line 65: @@
       Staging drivers [*]
           Data acquisition support <M>
 This ensures the built of the comedi module only.\\
 To actually make use of the supported hardware,\\
@@ Line 48: / Line 92: @@
 ==== Comedilib ====
-Comedilib needs to be installed
+Comedilib needs to be installed manually either via \\
+the latest stable release tarball from the Comedi page
+  wget http://www.comedi.org/download/comedilib-0.10.2.tar.gz
+(At time of writing 0.10.2 was the latest stable release)
+or by checking in out from the Git repository
+  git clone git://comedi.org/git/comedi/comedi.git
+The Git checkout requires to generate the //configure// script
+using //autotools//
+  ./autogen.sh
+Hint: Depending on the autotools version, it might be required
+to delete or comment the AM_PROG_AR macro in configure.ac!
+To display all available options
+  ./configure --help
+Afterwards compile and install it via
+  make
+  make install
+Once the drivers are properly loaded\\
+an overview of all supported Comedi devices\\
+can be received from
   > comedi_board_info
@@ Line 90: / Line 160: @@
 This is useful when writing real-time kernel modules that need\\
 access to Comedi devices.
+The //kcomedilib// module is automatically built with the external\\
+comedi package (see above). The intree version requires manual\\
+setting of the appropriate kernel config under "Comedi misc drivers".
+==== Resources =====
+=== Comedi Webpage ===
+http:%%//%%comedi.org \\
+=== Git Targets ===
+git:%%//%%comedi.org/git/comedi/comedi.git \\
+git:%%//%%comedi.org/git/comedi/comedilib.git

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