Date: Fri, 6 Feb 2009 12:54:56 -0500 From: John Baldwin <jhb@freebsd.org> To: Andriy Gapon <avg@icyb.net.ua> Cc: freebsd-arch@freebsd.org Subject: Re: Trimming the default /boot/device.hints Message-ID: <200902061254.57192.jhb@freebsd.org> In-Reply-To: <498C6DC9.8020700@icyb.net.ua> References: <200901260947.32870.jhb@freebsd.org> <200902061155.48705.jhb@freebsd.org> <498C6DC9.8020700@icyb.net.ua>
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On Friday 06 February 2009 12:05:13 pm Andriy Gapon wrote: > on 06/02/2009 18:55 John Baldwin said the following: > > On Friday 06 February 2009 11:43:09 am John Baldwin wrote: > >> On Friday 06 February 2009 10:22:35 am Andriy Gapon wrote: > >>> on 06/02/2009 16:37 John Baldwin said the following: > >>>> Yes, it only needs the hint for it to be a console device. > >>>> > >>> I am slightly confused as to how that hint works then, it's not like a > >>> standard isa hint it seems. > >>> Can it somehow be built-in (into the code)? > >> Specifically, look at sc_cnprobe() in sys/dev/syscons/syscons.c. It calls a > >> sc_cons_get_priority() routine that on x86 maps lives in > >> sys/isa/syscons_isa.c. This checks for a syscons hint. Changing it to > >> always assume a unit 0 would probably allow this to work. > > > > Something like this (untested): > > I am not sure, but maybe, just in case, also add > sc_get_softc(0,0) != NULL > check? > I guess device_get_softc returns NULL for non-attached/unknown devices. This check happens long before new-bus gets started, so there are no softc's to check. -- John Baldwin
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