Date: Thu, 26 Feb 2004 13:41:20 -0700 (MST) From: "M. Warner Losh" <imp@bsdimp.com> To: phk@phk.freebsd.dk Cc: arch@freebsd.org Subject: Re: per-device sysctls Message-ID: <20040226.134120.71093962.imp@bsdimp.com> In-Reply-To: <3045.1077827869@critter.freebsd.dk> References: <20040226.125904.08946359.imp@bsdimp.com> <3045.1077827869@critter.freebsd.dk>
next in thread | previous in thread | raw e-mail | index | archive | help
In message: <3045.1077827869@critter.freebsd.dk> "Poul-Henning Kamp" <phk@phk.freebsd.dk> writes: : In message <20040226.125904.08946359.imp@bsdimp.com>, "M. Warner Losh= " writes: : >In message: <xzp8yipk4gh.fsf@dwp.des.no> : > des@des.no (Dag-Erling Sm=F8rgrav) writes: : >: "Poul-Henning Kamp" <phk@phk.freebsd.dk> writes: : >: > Dag-Erling =3D?iso-8859-1?q?Sm=3DF8rgrav?=3D writes: : >: > > "M. Warner Losh" <imp@bsdimp.com> writes: : >: > > > That is a good reason to transitioning to this, so long as w= e can come : >: > > > up with a good way to represent detached nodes. : >: > > As long as they have a device_t, it should be a piece of cake.= : >: > Having a device_t is a property of having hardware, not of being= a : >: > device driver. : >: = : >: I believe that by "detached nodes", Warner means hardware that doe= s : >: not have a driver. : > : >They have a device_t, however. All nodes in the tree have a device_= t : >(kind of by definition). Not all nodes in the tree have a devclass : >associated with their device_t (eg, not all devices are attached). : >this is why you'll see lots of 'unknown' nodes in the devinfo output= .= : = : GEOM, NETGRAPH pty, tun, tap, nmdm and similar have no newbus : infestation and there would have to really good reasons to infest the= m. If they want to use this mechanism, they need to use the mechanism. I'm cool with them not using this mechanism, but I don't think we should kludge it to allow for them to use it. That's what I'm saying... This is a newbus only mechanism and let's not get bogged down in accomidatnig non-newbus things until we have the newbus parts of it working. Warner
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?20040226.134120.71093962.imp>