Date: Tue, 10 Apr 2001 20:20:10 -0400 From: "Matthew Emmerton" <matt@gsicomp.on.ca> To: "Cyrille Lefevre" <clefevre@poboxes.com> Cc: <freebsd-stable@FreeBSD.ORG> Subject: Re: ATA_ENABLE_ATAPI_DMA gone? Message-ID: <003301c0c21d$2c4b0cd0$1200a8c0@gsicomp.on.ca> References: <02db01c0c1b1$c1a0ffe0$0508a8c0@lofi.dyndns.org><20010410123317.A73359@irrelevant.org><200104101342.f3ADgsn15019@bmah-freebsd-0.cisco.com> <zodo2tsd.fsf@gits.dyndns.org>
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> the ata(4) manual page isn't clear about the difference between > hw.ata.ata_dma (where ata-disk.c says ATA disk DMA mode control) and > hw.ata.atapi_dma (where atapi-all.c says ATAPI device DMA mode control) ? ATA devices are hard disks. ATAPI devices are everything else (tape drives, floppy drives - including ZIP drives, and CD-ROM and DVD drives). ATA was originally developed as a standard for hard drives, and was later extended to support other devices. Hence, ATAPI, where PI stands for "Peripheral Interconnect" or something like that. -- Matt Emmerton To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message
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