IMX6 IPU: enqueue task with callback

albanderuaz — Fri, 27 May 2016 18:05:50 GMT

Hi!

In order to enqueue a task to the IPU, I am currently using the following C function call in my program:

ioctl(fd_ipu, IPU_QUEUE_TASK, &task)

It works, but it only returns when the enqueued task in the IPU is finished. I would like to do it in an non blocking way, by for example providing a callback function to the IPU, so that I can still use my thread during the ipu operation.

Thank you very much for your help!

Re: IMX6 IPU: enqueue task with callback

Yuri — Fri, 10 Jun 2016 08:20:52 GMT

Hello,

According to Image Processing Unit (IPU) Drivers chapter in "i.MX_Linux_Reference_Manual.pdf",

for more information on what IOCTLs exist and which data structures they use, see

<Yocto_BuildDir>/linux/include/uapi/linux/fb.h.

Perhaps You need to implement the required feature yourself.

Have a great day,
Yuri

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IMX6 IPU: enqueue task with callback

Re: IMX6 IPU: enqueue task with callback