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Message-ID: <3D90C670.90508@pobox.com>
Date: Tue, 24 Sep 2002 16:09:20 -0400
From: Jeff Garzik <jgarzik@pobox.com>
Organization: MandrakeSoft
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To: Chris Friesen <cfriesen@nortelnetworks.com>
CC: Rusty Russell <rusty@rustcorp.com.au>,
       linux-kernel mailing list <linux-kernel@vger.kernel.org>,
       Alan Cox <alan@lxorguk.ukuu.org.uk>,
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       "ipslinux (Keith Mitchell)" <ipslinux@us.ibm.com>,
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       Hien Nguyen <hien@us.ibm.com>, James Keniston <kenistoj@us.ibm.com>,
       Mike Sullivan <sullivam@us.ibm.com>
Subject: Re: alternate event logging proposal
References: <20020924073051.363D92C1A7@lists.samba.org> <3D90C183.5020806@pobox.com> <3D90C3B0.8090507@nortelnetworks.com>
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Chris Friesen wrote:
> Also related is "how can userspace be notified of kernel events?". There 
> is no way for a userspace app to be notified that, for instance, an ATM 
> device got a loss of signal.  The drivers print it out, but the 
> userspace app has no clue.


(sorry for the second reply)

To address your more general point, a general way to notify interested, 
credentialed (is that a word?) 3rd party processes of device events 
would indeed be useful.  Since such events are essential out-of-band 
info, netlink might indeed be applicable.

	Jeff



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