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