Loading the OSS modules on the XO
pgf at laptop.org
pgf at laptop.org
Wed Aug 13 10:43:40 EDT 2008
> Its OK if I need to have root permissions only once right? I can change the
> /etc/modules/ once during installation of the activity and need not load the
> module every time I run the activity. I am new programming on Linux and
> wasnt sure what to change to make the XO load the oss module on startup. So
> my plan is if I know how to make the XO load the oss modules I can do
> this in a script and run the script during installation of the activity so
> that when I launch the activity I would not need root permission.Could you
> please tell me how to change /etc/modules to load oss modules on startup?
the file /etc/modules that erik mentioned isn't used on the XO, but
there's a similar mechanism in place.
create a new file /etc/sysconfig/modules, with a name that ends
in ".modules", like "oss.modules". that file should be an executable
shell script which will load the modules you want. see the existing
"olpc-1.modules" file in that directory as an example, but probably
all you need is a single "modprobe snd-pcm-oss" command.
this should cause your module to be installed when the XO boots.
> On Wed, Aug 13, 2008 at 6:54 PM, Erik Garrison <erik at laptop.org> wrote:
> > On Wed, Aug 13, 2008 at 06:16:58PM +0530, shivaprasad javali wrote:
> > > Hi,
> > >
> > > I am porting a application to the XO. It uses the OSS sound Api's to
> > > render sound. I found that the oss modules are not loaded on the xo by
> > > default. I was able to load the oss modules by running modprobe
> > snd-pcm-oss
> > > which created the /dev/dsp and other device files required by the oss
> > > modules and was able to run my application on the XO. But the problem is
> > > every time I reboot the XO I will have to run the commands and load the
> > oss
> > > modules.
> > >
> > > Is there any way I can tell the XO to always load the oss modules?
> > Even
> > > if I have a script to run the commands on launching the application these
> > > commands would require super user privileges which I wont have when I
> > launch
> > > the application from the activity bar. Any Ideas?
> > Without root access, your activity will have difficulty modifying
> > /etc/modules to enable autoloading the snd-pcm-oss module at boot. I am
> > unsure if there is any way around this issue unless the deployment scope
> > for your activity is a set of machines on which you have root access.
> > Erik
> part 2 text/plain 129
> Devel mailing list
> Devel at lists.laptop.org
paul fox, pgf at laptop.org
More information about the Devel