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Asked by BrianGEFF719 in C Programming Language, Linux
Hi,
I've built a driver that works as a block device, it's a ram disk. Basically, at this point I'm trying to modify it to support change notifications. Here is what I was thinking:
1) User passes a function pointer to a function that is called on change. However, can this lead to problems calling a user mode function from the kernel?
2) User passes a structure into the ioctl interface, and then blocks until a change, the structure is filled out and returned to the user when a change is detected.
What is the best way to go about this?
20091111-EE-VQP-92 - Hierarchy / EE_QW_EXPERT_20070906
