Dear all:
DavinciDisplay driver occur error occasionally when NTSC convert to 1080I or execute reopen display device.
The error message as below:
DavinciDisplay DavinciDisplay.1: not IO user
ERROR (drv_display.c|DRV_displayReOpen|576): Could not allocate buffers on /dev/video2
It occur when the program perform the following code:
reqbuf.type = V4L2_BUF_TYPE_VIDEO_OUTPUT;
reqbuf.count = config->numBuf;
reqbuf.memory = V4L2_MEMORY_USERPTR;
ret = ioctl(fd, VIDIOC_REQBUFS, &reqbuf); // here
The messgae seem to tell us that driver didn't execute davinci_release or not successful.
I don't know why?
How can i fix this issue ?
Dose it has any patch can be improve this issue?
Or give me some suggestion about this.
thanks for your visit
Best regard