Re: kernel and user mode message communication

[Stephen Hemminger]

On Fri, 20 Jan 2006 14:17:20 +1100 (EST)
yh@xxxxxxxxxxxxxx wrote:

> Hello,
> 
> I am porting three device drivers to linux. One function is that for
> every received packet, the device driver sends a message to notify the
> applications for processing. But I could not do it in linux, IPC seems
> not designed for linux kernel.

Use AF_PACKET, frame diverter or one of the standard mechanisms.
There is no reason to make your device have special hooks.

> This is a very basic feature for device driver to communicate
> applications via messages, I am sure there must be some way in linux
> where the kernel can talk to user mode applications via messages or
> similar alternative mechanism (not signal).
> 
> Any advices or sample codes will be much appreciated.
> 
> Thank you.
> 
> Jim
> 
> 
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