linux-kernel - Re: userspace notification from module

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Message-ID: <4B3F3DE7.7030809@googlemail.com>
Date:	Sat, 02 Jan 2010 13:36:55 +0100
From:	Daniel Borkmann <llug.dan@...glemail.com>
To:	Bartłomiej Zimoń <uzi18@...pl>
CC:	linux-kernel@...r.kernel.org
Subject: Re: userspace notification from module

Hi Bartłomiej,

Bartłomiej Zimoń wrote:
> Use inotify from userspace could be interesting for such data,
> but looks like sysfs/procfs doesn't send signal about data changed in file or maybe i'm wrong?
> 
> If sysfs/procfs is wrong for that so must create device file, but here secound problem 
> how to notify that file/buffer has new data?

Actually, the file content of a procfs file is volatile and generated on
the fly, just have a look at some device drivers or at the API.

Did you have a look at the netlink protocol for communication from
kernel to userspace?

Cheers,
Daniel
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