hi,all! 
 I want to debug now the MT9T001 camera in the DM355 development board, 
I use the module the form to insert in the middle of the essence, 
 my step is as follows:
1.insmod  tvp5146.ko 2.insmod  mt9t001.ko 
3.insmod  video-buf.ko 
4.insmod  davinci-vpfe.ko device_type=0
The first two steps do not have the question
run 3 step , prompts the error message:
video_buf: Unknown symbol v4wb_clear_user_pageinsmod: error inserting 
'video-buf.ko': -1 Unknown symbol in module
 
run 4 step ,prompts the error message:
kobject_register failed for vpfe (-17)driver registration failedinsmod: error 
inserting 'davinci-vpfe.ko': -1 Operation not permitted
thanks!
winkyxiao
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