RE: how to test framebuffer driver

"Mukund JB." wrote:

quoted

Can I write an application by directly opening my fb device and
performing operations like read/write/ioctl on it.

Yes you can, see here

"http://cvs.sourceforge.net/viewcvs.py/wyodesktop/wyoDesktop/checkdfb/sr
c/

app.cpp?view=markup"
or here
"http://cvs.sourceforge.net/viewcvs.py/linux-
fbdev/fbtest/main.c?view=markup".
You are welcomed to enhance either test or even write your own. Best

if

you look at this thread as well

"http://sourceforge.net/mailarchive/forum.php?thread_id=5445188&forum_id
=2

357".

O. Wyss

Are these applications running on the X server or do they run directly
on Framebuffer driver.

Being a driver writer I don't want to take the pain of developing such
an application. So, if I just develop a frame buffer driver and run
these applications by D/W them, will it work or shall I have to do any
application level changes.

Have the Application API's that access the driver have changed from
kernel to kernel.

How will the functions defined in fb_ops structure being called. r these
callback functions. If so, how can I identify the Application level call
for each of these call backs.

Thanks a lot to the Linux community for ur continuous support,
Mukund jampala. 
 


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