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omap例程saGraphicsARGB报错无法运行

Other Parts Discussed in Thread: TVP5146M2

AM35x-OMAP35x-PSP-SDK-03.00.01.06的example例程,我使用的是tvp5146m2传输进来的图像,但是一运行程序显示错误

tvp514x 2-005d:tvp5146m2 found at 0xba (OMAP I2C adapter)

VIDIOC_G_FBUF:Invalid argument

使用的是dvsdk_3_01_00_10,内核是linux-03.00.01.06  ,内核应该是支持V4L2的,在include那些下面都有对应的头文件。同样的运行例程saMmapLoopback就没有问题,尝试了一天了,想请问是什么原因造成的。谢谢大家