##3 Frame Buffer Questions?

["Steve Spano" <steve@flconsult.com>]

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Hi Folks,

 

I have a question.


Working on a "semi-custom" frame buffer for a Xilinx FPGA with the
Microblaze.

 

The specific file we started with is already in the
uclinux/drivers/video and is called xilinxfb.c

 

We can register the driver and a debug trace in the driver shows that it
registers as FB0 29-0, so that should be right.

 

However, if I do a cat /dev/fb0  the linux responds by saying it can't
open the device. It appears that somehow the default file pointer in
dev/fb0 cannot connect to the actual driver?

 

MKNODing the driver also fails.

 

I do have other drivers that we have made that do install, so this isn't
the first attempt at a driver.

 

Any thoughts on where I may look for some ideas on this?

 

Thanks!

 

Steve Spano, President

Finger Lakes Engineering

119 South Cayuga #200

Ithaca, Ny 14850

(V) 607-277-1614 x223

(C) 607-342-1150

www.FL-ENG.com - FLE's Main Website

www.FLEDEVFORUM.com - FLE's Developer Forum

 

 


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