Date: Mon, 7 Apr 2003 02:47:49 -0400 From: Mathew Kanner <mat@cnd.mcgill.ca> To: "M. Warner Losh" <imp@bsdimp.com> Cc: freebsd-current@freebsd.org Subject: Re: midi problem, an isa device on a pci card Message-ID: <20030407064749.GO17533@cnd.mcgill.ca> In-Reply-To: <20030407.000118.68039554.imp@bsdimp.com> References: <20030404182557.GK17533@cnd.mcgill.ca> <20030406164134.GN17533@cnd.mcgill.ca> <20030407.000118.68039554.imp@bsdimp.com>
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Hello Warner, Thanks for your comments, it helps keep me interested as this is only a for fun hacking project. On Apr 07, M. Warner Losh wrote: > You can't create ISA devices that are parented to the pci bus. You > just can't. I don't understand your comment, isn't the newly created devices parent the (first) ISA bus? I scan for the isa class, get device instances and create from there. > You have to make them be full pci devices. > Hweover, this > is relatively easy to do. You hacks will just not work. But it's an ISA device on on a pci card. I don't know this for sure but the soundcard docs talk about special hardware to appear as a legacy device, also, all pci devices on my machine have 4 byte port ranges while this and other ISA devices have 3. I can send and receive on the MPU, albeit, sending is screwy either too fast or too slow, (too slow by itself, too fast when I force feed interrupts with timeout(), sigh, I wonder if send interrupts are broken for mpus in general). kldload and unload both the pci(soundcard) and the isa(mpu) drivers seem to work well. --Mat -- The Brain: We're going to a place where the sun never sets, the size of your wallet matters, and actors and actresses slave all day! Pinky: We're going to Denny's?
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