Date: Tue, 2 May 2006 00:38:32 -0400 From: "Rong-En Fan" <grafan@gmail.com> To: "M. Warner Losh" <imp@bsdimp.com> Cc: freebsd-current@freebsd.org, marcel@xcllnt.net Subject: Re: lpt0 disappear (ppc related) Message-ID: <6eb82e0605012138t1fb1c351o36203a5e269e889d@mail.gmail.com> In-Reply-To: <20060501.222743.32503989.imp@bsdimp.com> References: <200605011421.49909.doconnor@gsoft.com.au> <20060501.095317.06445891.imp@bsdimp.com> <200605020815.31012.doconnor@gsoft.com.au> <20060501.222743.32503989.imp@bsdimp.com>
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On 5/2/06, M. Warner Losh <imp@bsdimp.com> wrote: > In message: <200605020815.31012.doconnor@gsoft.com.au> > "Daniel O'Connor" <doconnor@gsoft.com.au> writes: > : On Tuesday 02 May 2006 01:23, M. Warner Losh wrote: > : > : However you wouldn't expect that using it as a module would result = in > : > : reduced functionality. (The same as how you wouldn't expect compili= ng > : > : something into your kernel would result in reduced functionality) > : > > : > At the same time, you'd expect it to behave like every other 'bus' in > : > the tree. We omit the attachments for drivers to that bus when the > : > kernel is built w/o that bus. This is why if you have, say, ep in th= e > : > kernel, but pccard loaded as a module, the 3c589 you just inserted > : > into the pccard slot won't work. > : > > : > It is a minor imperfection in the config system that no one has taken > : > on as a Problem To Solve. Solving it turns out to be somewhat tricky= . > : > : Hmm, but I load acpi as a module and get acpi attachments.. (for sio an= d ppc) > : > : <shrugs> it's black magic to me anyway :) > : > : I didn't mean to belittle Marcel's work, I was just suprised that it wo= uld > : cause a functionality loss like that. > > I think it just points out a weakness in the underlying system... Hmm, until this is solved. Could we have acpi configured in kernel on i386 as default? I really don't know why this is deprecated usage. (as the comments in NOTES says) Thanks, Rong-En Fan
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