On Fri, 25 Feb 2000, wf wrote:
> I need to use IPC msg system call in my device interrupt routine to info
> user process, but it seems have no such surport.So i add my msg system call
> interface in msg.c like the following:
(Possible Troll code)
You don't ever do anything like that! An interrupt can/will occur at
any time. Your user's code/data may not even be in memory at the time.
Hint: poll()(in your driver) and wake_up_interruptible()(in your ISR).
Look at other drivers. Do not try to "invent" something.
Cheers,
Dick Johnson
Penguin : Linux version 2.3.41 on an i686 machine (800.63 BogoMips).
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