Date: Mon, 18 Jul 2005 13:16:42 -0700 From: Nate Lawson <nate@root.org> To: John Baldwin <jhb@FreeBSD.org> Cc: freebsd-current@FreeBSD.org, harrycoin@qconline.com, "M. Warner Losh" <imp@bsdimp.com> Subject: Re: mss.c pcm fix to ' attach returned 6 ' load failure for v5.x acpi and up Message-ID: <42DC0E2A.9030706@root.org> In-Reply-To: <200507181619.31189.jhb@FreeBSD.org> References: <4.3.2.7.2.20050716114020.01f0fcb8@mail.qconline.com> <4.3.2.7.2.20050716124022.01f08460@mail.qconline.com> <20050716.125824.48530425.imp@bsdimp.com> <200507181619.31189.jhb@FreeBSD.org>
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John Baldwin wrote: > On Saturday 16 July 2005 02:58 pm, M. Warner Losh wrote: > >>: dmesg excerpt ... >>: mss_probe: bus acpi0 is probing device pcm0 >>: mss_probe: isa_get_logicalid() returned 0! >> >>This is the problem. It shouldn't be probing there. It doesn't in >>current. Chances are John beat me to it and we're arguing over >>something that's been fixed... > > > I removed that probe in current. The problem is that ACPI has HID values that > are strings like "ACPI0003" that don't fit the EISAID model, so for devices > like ACPI thermal zones that only have an ACPI HID, there's no PNP-compatible > HID or CID to return to the ISA drivers. I think the proper solution is that > drivers that don't support ACPI-enumerate devices (recall that ACPI > enumerates PNPBIOS devices) need to stop having acpi attachments, and that > drivers that do need to use ISA_PNP_PROBE(). I think that the only embedded > sound controllers are PCI, so that probably all of the ISA PNP sound drivers > don't need acpi attachments but I could be wrong. You can have a sound controller present in a dock. Most of those are across a pci-pci bridge but some docks export the LPC bus lines directly to a duplicate super I/O. I agree with you though that it is very unlikely someone used such a design for the sound controller. -- Nate
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