ds:comedi
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ds:comedi [2015/08/06 11:12] tmilosic |
ds:comedi [2015/08/06 16:07] (current) tmilosic |
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| [The following assumes you're in a maintenance chroot and are\\ | [The following assumes you're in a maintenance chroot and are\\ | ||
| - | installing the modules directly to the diskless system.] | + | installing the modules directly to the diskless system.\\ |
| + | If you want to build and install the drivers to a different \\ | ||
| + | directory, for example '/ | ||
| + | you have to specify --with-modulesdir=< | ||
| Assembling the Makefile for 64-bit Linux 3.10.82-rt89 with RT preempt patch | Assembling the Makefile for 64-bit Linux 3.10.82-rt89 with RT preempt patch | ||
| Line 39: | Line 42: | ||
| make install | make install | ||
| + | |||
| + | This will install the modules to | ||
| + | |||
| + | / | ||
| + | | ||
| + | where kernel-version is 3.10.82-rt89 in this example. | ||
| === Linux In-Tree Comedi Support === | === Linux In-Tree Comedi Support === | ||
| - | Comedi and available drivers are integrated into the Linux kernel since 2.6.30\\ | + | Comedi and available drivers are also integrated into the Linux kernel |
| - | located in the experimental staging tree.\\ | + | 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 \\ | To enable Comedi and build the //comedi// module, setup the \\ | ||
| Line 79: | Line 92: | ||
| ==== Comedilib ==== | ==== Comedilib ==== | ||
| - | Comedilib needs to be installed manually either via Git | + | Comedilib needs to be installed manually either via \\ |
| - | git clone git:// | + | the latest stable release tarball from the Comedi page |
| - | or by getting | + | |
| wget http:// | wget http:// | ||
| - | At time of writing 0.10.2 was the latest stable release. | + | (At time of writing 0.10.2 was the latest stable release) |
| + | or by checking in out from the Git repository | ||
| + | git clone git:// | ||
| + | |||
| + | The Git checkout requires to generate the // | ||
| + | using // | ||
| + | |||
| + | ./ | ||
| + | |||
| + | 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 | > comedi_board_info | ||
| Line 125: | Line 160: | ||
| This is useful when writing real-time kernel modules that need\\ | This is useful when writing real-time kernel modules that need\\ | ||
| access to Comedi devices. | access to Comedi devices. | ||
| + | |||
| + | The // | ||
| + | comedi package (see above). The intree version requires manual\\ | ||
| + | setting of the appropriate kernel config under " | ||
| ==== Resources ===== | ==== Resources ===== | ||
| + | |||
| + | === Comedi Webpage === | ||
| + | http: | ||
| + | |||
| + | === Git Targets === | ||
| + | git: | ||
| + | git: | ||
| + | |||
| + | |||
ds/comedi.1438852327.txt.gz · Last modified: 2015/08/06 11:12 (external edit)
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