Date: Mon, 23 Feb 1998 14:58:15 -0800 From: Amancio Hasty <hasty@rah.star-gate.com> To: Mike Smith <mike@smith.net.au> Cc: The Hermit Hacker <scrappy@hub.org>, freebsd-current@FreeBSD.ORG Subject: Re: ATAPI related patch .. Message-ID: <199802232258.OAA00974@rah.star-gate.com> In-Reply-To: Your message of "Mon, 23 Feb 1998 14:18:42 PST." <199802232218.OAA12635@dingo.cdrom.com>
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Hi, In the past we have supported reading Video CDs as well as audio CD via the low level scsi routines. So yes I can read audio off a cd via a low level ioctl call. I am not objecting to your comment just merely wish to express that there is already a precedence for doing i/o with ioctls. Amancio > > I thought that the low level scsi i/o routines did just that io with > > ioctls... > > The low-level SCSI I/O routines need a freeform I/O approach, and > they're designed for casual poking at things in an out-of-band fashion, > sort of like a SCSI geek-port. > > Luigi's hack is for CDDA (sucking audio off the CD) acccess; this is > basically bulk data transfer. Being a read-like operation, it's better > handled as such. > > With a little more work, once you support audio accesses in the driver > properly, you become able to produce a "cdrom audio FS", where tracks > on the disk appear as files when the disk is mounted. > > I appreciate that Luigi's hack is expedient, and as I said if there's a > strong precedent (ie. binary compatability issues) then sure, we should > support it. > > -- > \\ 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. \\ msmith@cdrom.com > > > > To Unsubscribe: send mail to majordomo@FreeBSD.org > with "unsubscribe freebsd-current" in the body of the message To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message
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