Date: Fri, 04 Feb 2005 09:36:54 -0700 (MST) From: "M. Warner Losh" <imp@bsdimp.com> To: dfr@qubesoft.com Cc: nate@root.org Subject: Re: cvs commit: src/sys/ia64/ia64 machdep.c Message-ID: <20050204.093654.114275559.imp@bsdimp.com> In-Reply-To: <5539563a425020d35ef1878057f4f85d@qubesoft.com> References: <84e9ba659174ea3f7c7b2930c0ae3759@xcllnt.net> <20050204.091426.98415585.imp@bsdimp.com> <5539563a425020d35ef1878057f4f85d@qubesoft.com>
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In message: <5539563a425020d35ef1878057f4f85d@qubesoft.com>
Doug Rabson <dfr@qubesoft.com> writes:
:
: On 4 Feb 2005, at 16:14, M. Warner Losh wrote:
:
: > In message: <84e9ba659174ea3f7c7b2930c0ae3759@xcllnt.net>
: > Marcel Moolenaar <marcel@xcllnt.net> writes:
: > : > I'm not sure if my approach is correct -- should different drivers
: > for
: > : > the same hardware share the same devclass?
: > :
: > : A datapoint: sio(4) and uart(4) are different drivers for the same
: > : hardware.
: > : They don't share the devclass.
: >
: > Neither do they share the same name.
:
: Just to make things clear, if two drivers use the same name, they will
: always share the devclass automatically (whether or not they use the
: same variable to reference the devclass) and will allocate
: non-conflicting unit numbers.
Cool. I'd thought I'd wound up with two instances of ed0 when I had
different devclasses in the if_ed_isa and if_ed_pci files once upon a
time...
Warner
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