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From: Doug Rabson <dfr@qubesoft.com>
Date: Fri, 4 Feb 2005 16:30:36 +0000
To: "M. Warner Losh" <imp@bsdimp.com>
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Subject: Re: cvs commit: src/sys/ia64/ia64 machdep.c
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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.
>