Framebuffer

[chirag garg]

Thank you Stefan,

I am able to silent this error message and got the understanding of config
file.

Regards

Chirag Garg
IIT Madras , Rise Lab

On Wed, Feb 11, 2015 at 4:12 PM, Stefan Kalkowski <
stefan.kalkowski at ...1...> wrote:

> Hi,
>
> On 02/04/2015 01:19 PM, chirag garg wrote:
> > Hi all,
> >
> > I was trying to understand the flow of framebuffer flow for given imx53
> > code in the following directory
> > repos/os/src/drivers/framebuffer/imx53/main.cc
> >
> > In the main function, one static variable "session_component" has been
> > created which uses the "config_attribute" function defined in line
> > number 115 which expect a config file in build process.
> >
> > What is the need of this config file with respect to framebuffer and
> > where should i found this config file in the repository because when i
> > run the framebuffer script it is not able to open config file?
>
> The config file's content of a framebuffer driver is dependent on the
> actual driver. For some drivers you can specify the resolution for
> instance. The framebuffer driver for the i.MX53 used the config file to
> determine, whether it has to buffer write attempts of the client, or if
> the client directly writes to the framebuffer itself. A corresponding
> configuration looks like the following:
>
>   <config buffered="yes"/>
>
> The configuration is optional, you see the try-catch clause around the
> config file access. If there is no config file for the driver available,
> it uses a default value (not buffered).
>
> Configuration files for Genode components are typically part of the
> whole system configuration delivered to the first init process of the
> system. Such configurations can be found in the different run-scripts of
> the Genode repositories. Have a look at the preliminary version of the
> Genode manual section 6:
>
>
>
> http://genode.org/files/e01096b9ffe3f416157f6ec46c467725/manual-2015-01-23.pdf
>
> Regards
> Stefan
>
> >
> > Regards
> >
> > Chirag Garg
> > IIT Madras , Rise Lab
> >
> >
> >
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>
> --
> Stefan Kalkowski
> Genode Labs
>
> http://www.genode-labs.com/ · http://genode.org/
>
>
> ------------------------------------------------------------------------------
> Dive into the World of Parallel Programming. The Go Parallel Website,
> sponsored by Intel and developed in partnership with Slashdot Media, is
> your
> hub for all things parallel software development, from weekly thought
> leadership blogs to news, videos, case studies, tutorials and more. Take a
> look and join the conversation now. http://goparallel.sourceforge.net/
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