Date: Thu, 24 Apr 2008 08:11:26 -0400 From: John Baldwin <jhb@freebsd.org> To: Andriy Gapon <avg@icyb.net.ua> Cc: freebsd-hackers@freebsd.org Subject: Re: devctl (alike?) for devfs Message-ID: <200804240811.26183.jhb@freebsd.org> In-Reply-To: <48103F36.6060707@icyb.net.ua> References: <480E4269.2090604@icyb.net.ua> <480FBAB9.1000904@icyb.net.ua> <48103F36.6060707@icyb.net.ua>
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On Thursday 24 April 2008 04:05:10 am Andriy Gapon wrote: > on 24/04/2008 01:39 Andriy Gapon said the following: > > on 23/04/2008 22:49 John Baldwin said the following: > >> Events have a subsystem associated with them, so devfs events would use > >> their own subsystem type to avoid that sort of confusion. > > > > Thank you for straightening me - for some reason I was thinking about > > "+"/"-" (attach/detach) events, but I see that "!" (notification) would > > be much more appropriate. As you said, this can be completely modeled > > after IF notifications. > > Do you think it would be better to post notification from make_dev*() in > kern_conf.c or from devfs_create()? > I mean will such notification be useful if there is no devfs to access > the device from userland? I'm not sure. Probably just make_dev*() as all systems will have a devfs on /dev. -- John Baldwin
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