Date: Thu, 4 Jan 2007 11:21:01 -0500 From: John Baldwin <jhb@freebsd.org> To: freebsd-arch@freebsd.org Cc: Ulrich Spoerlein <uspoerlein@gmail.com> Subject: Re: usb modems and com devices into GENERIC Message-ID: <200701041121.02455.jhb@freebsd.org> In-Reply-To: <20070103205841.GB85200@roadrunner.q.local> References: <20070101.113801.818271922.imp@bsdimp.com> <20070103205841.GB85200@roadrunner.q.local>
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On Wednesday 03 January 2007 15:58, Ulrich Spoerlein wrote: > M. Warner Losh wrote: > > I'd like to place the following in GENERIC. We're getting more and > > more questions about these devices that we wouldn't be getting if we > > had them compiled in by default. The really imporant ones are marked > > with a '*' below > > > > device ucom # * > > device umodem # * > > device umct > > device uark > > device ubsa > > device ubser > > device uftdi # * > > device uplcom # * > > device uvisor > > device uvscom > > > > the cost isn's so much, and we can filter them out from the > > installation kernel if size is an issue. > > > > Comments? > > Hi Warner, > > why not do it the other way round? Keep them out of GENERIC, but have > loader(8) load some of the most used modules (snd_driver!) per default. > > That way, people can easily disable these (without needing to > recompile). > > I mean, what point is there in the whole KLD infrastructure, if we are > going to add every device into GENERIC anyway? It works great when you are developing a driver that lives in a module. :) The point is to give people tools to use, it's up to different people to use them as they see fit. I pretty much never use kernel modules (except for either working on a driver or test modules I write) but use static kernels since kernel debugging tends to be simpler when you avoid modules. It can also be a larger pain to manage if you are administering a lot of machines. You also then have the extra task of making sure kernel and modules are always in sync ABI-wise (a static kernel is always self-consistent). -- John Baldwin
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