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Old 01-31-2012, 06:46 AM   #1
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Registered: Jan 2012
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DMA transfer using streaming method


We are using driver to read and write xml file thru pcie card(Bus mastering).While reading and writing ,using pci_map_single() and pci_unmap_single() and then copying to user space using copy_to_user() function(copy_from_user for transferring data from user to kernel space viceversa) resulting in crash.Is this the write method?
Please suggest.

Thanks in advance.


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