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is there a way that an application running at user-mode can communicate with another application at the kernel mode.
For example, I would like to collect some infomation from the network driver and feed it some sniffer app running at user lever.
How do I proceed . Please advise.
One way to create a char/block device driver. Your application can then use regular IO calls like open, read, write, ioctl, & etc.
http://www.networkcomputing.com/unixworld/tutorial/010/010.txt.html