Ti dvsdk on omap3530 use devkit8000 (4)

These errors keep appearing, and I am going crazy!

 

Demo interface started at level 0.
Rings WPL Debug: dattrs. Rotation = 0
Error: failed to create display device instance
SH: can't create/sys/devices/platform/omapdss/overlay0/global_alpha: nonexisten
T directory
Error: failed to execute: Echo 0>/sys/devices/platform/omapdss/overlay0/Global
_ Alpha

 

I had to start from scratch to figure out what was going on.

 

Error: failed to create display device instance

This is the interface demo.Program. Here:

 

$ (Home)/dvsdk/dvsdk_3_01_00_10/dvsdk_demos_3_01_00_13/omap3530/interface/Main. c

 

Env. hdisplay = display_create (null, & dattrs );

If (Env. hdisplay = NULL ){
Err ("failed to create display device instance/N ");
Cleanup (exit_failure );
}

 

Where does display_create interface come from? After grep, It is the multimedia application programming interface provided by Ti in the dmai module. This module contains some documents, which are more detailed.

 

After reading it for a long time, I felt wrong and implemented it.CodeRegardless of the environment and configuration.

 

Google and Google have been around for a long time. What's hateful is that Google groupes has been on the wall, and many similar problems of Beagle cannot be seen and depressed.

 

Finally, it was fruitless to compare the Kernel configuration differences between EVM and beagle and find the legendary dss2. I think the problem should be here, including sysfs-related device errors in the error message.

 

DSS and dss2 are mutually exclusive!

Therefore, dss2 must be connected to the LCD. Continue Google, patch, and git. I will start the latest kernel of git devkit and try it.

Git ............