RE: Messaging between kernel modules and User Apps
From: Heater, Daniel (IndSys, GEFanuc, VMIC)
Date: Thu Aug 21 2003 - 10:10:21 EST
> I am writing a kernel module. The module will need to send asynchronous
> messages to a User Application. Is there a good and efficient way of
> doing this?
Let user space read the data from a device file.
Use poll/select to handle the asynchronous notification.
The other option is to have the driver send a signal to user space.
I've done that before, but at best it's a hack and not neatly supported
by the Linux driver model.
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