Date: Mon, 24 Oct 2005 10:27:47 -0600 (MDT) From: "M. Warner Losh" <imp@bsdimp.com> To: jhb@freebsd.org Cc: frank@pinky.sax.de, freebsd-hackers@freebsd.org Subject: Re: How disable attachment of sio(4) driver to device? Message-ID: <20051024.102747.89800306.imp@bsdimp.com> In-Reply-To: <200510241120.31203.jhb@freebsd.org> References: <200510221516.j9MFGnqT026691@pinky.frank-behrens.de> <20051022.103242.98606517.imp@bsdimp.com> <200510241120.31203.jhb@freebsd.org>
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In message: <200510241120.31203.jhb@freebsd.org>
John Baldwin <jhb@freebsd.org> writes:
: Only if you make sure that sio(4) doesn't try to pass data between probe() and
: attach() via the softc since the softc is preserved from probe to attach if
: you return 0 from probe.
sio's probe routine, now that you mention this, I believe leaves
things in a state that sioattach knows abou.
However, it looks like the probe routine will get called twice when
you return < 0, so maybe this is OK.
Warner
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