Date: Fri, 23 Jan 1998 18:18:40 +1030 From: Mike Smith <mike@smith.net.au> To: Satoh Junichi <junichi@astec.co.jp> Cc: Pedro A M Vazquez <vazquez@IQM.Unicamp.BR>, hackers@FreeBSD.ORG Subject: Re: wfd/zip ATAPI Message-ID: <199801230748.SAA01534@word.smith.net.au> In-Reply-To: Your message of "Thu, 22 Jan 1998 12:22:56 %2B1030."
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Just following up on my earlier posting. > > I think WRITE-12 is better. > > But, the LS-120 drive didn't work with WRITE-12. > > So, I didn't use WRITE-12 on wfd driver. The Linux IDE floppy driver offers READ/WRITE-12 as options, but doesn't appear to provide a mechanism for setting the option (probably just my ignorance). > I have been wondering if there isn't some timing or size limitation > that we're hitting with the Zip; it's hard to be sure what it's really > unhappy about though. And indeed, there is a comment in the Linux code to the effect that transfers of more than 64 sectors cause some drives to lock up. I'll look at this tonight; any clever ideas for splitting a transfer up, or can I just specify D_NOCLUSTERRW for d_flags in the bdevsw? -- \\ Sometimes you're ahead, \\ Mike Smith \\ sometimes you're behind. \\ mike@smith.net.au \\ The race is long, and in the \\ msmith@freebsd.org \\ end it's only with yourself. \\
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