How do I run the EDMA examples?

Will Berry

Hi,

I'm developing on the DaVinci DM6446 and I'm fairly new to Linux. I can see you have examples of EDMA functions for EDMA channel 3 (under /root/dvsdk_2_00_00_22/PSP_02_00_00_140/examples/dm644x/edma) but its not obvious to be how you would execute them.

I'm used to creating char device drivers that get associated with a node file that then acts as the interface between the app and the driver. There are no file_operations with these examples ,so how would you normall interface to them?

Thanks,

Will.

over 15 years ago

0 Will Berry over 15 years ago

Prodigy 220 points

Oh, is the idea that when its installed as a kernel object, upon initialisation it runs its own EDMA test routines, reports the results, and then exits?

0 Juan Gonzales over 15 years ago in reply to Will Berry

TI__Mastermind 37340 points

Will,

you are probrably correct; it is my understanding that the EDMA driver provided by the kernel is only accessaible by other kernel modules and has no APIs exposed to user-space applications; therefore, what you are suggesting is likely correct.

Processors

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How do I run the EDMA examples?