Date: Fri, 1 Jun 2001 01:59:16 -0400 (EDT) From: Kyle Rollin <klined@orbimus.dhs.org> To: Chuck Rouillard <chuckr@opus.sandiegoca.ncr.com> Cc: "David L. Hays, Jr." <elfkinz@elfland.net>, <freebsd-questions@FreeBSD.ORG> Subject: Re: Problem with sound card and lpt port on non-standard IRQs Message-ID: <Pine.BSF.4.33.0106010157550.37565-100000@orbimus.dhs.org> In-Reply-To: <Pine.BSF.4.31.0105312131300.43938-100000@opus.sandiegoca.ncr.com>
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<snip> > > ----- > > Kernel Config file: > > # Parallel port > > device ppc0 at isa? port? irq 5 drq 3 > > device ppbus # Parallel port bus (required) > > device lpt # Printer > > Why do you have a DMA request value for a parallel port device? </snip> Most modern LPT ports (ECP, EPP, etc) require a DMA address. This is for bi-directional communication with the printer, so the printer can directly access the spooled pages in memory, etc. -Kyle Rollin klined@orbimus.dhs.org To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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