Date: Thu, 11 Jan 2001 08:27:12 +0100 (CET) From: Soren Schmidt <sos@freebsd.dk> To: bschwand@dvart.com (bruno schwander) Cc: multimedia@FreeBSD.ORG Subject: Re: xine and VCD support Message-ID: <200101110727.IAA83374@freebsd.dk> In-Reply-To: <3A5D063D.158D8D99@dvart.com> from bruno schwander at "Jan 10, 2001 05:02:53 pm"
next in thread | previous in thread | raw e-mail | index | archive | help
It seems bruno schwander wrote: > by looking into tosha I think it would not be too difficult to have a table > with known cddrive<->cddaread commands, and store the appropriate one at > attach time, then use this instead of whatever standard read command is > issued now when a cdda read is needed. Of course it may be much more > complicated than this since I don't know how the read is actually done. Well talk to the SCSI guys, they have avoided this like the plague, and I can understand why... You will also have to face the problem that the SCSI subsystem doesn't allow for blocksizes thats not % 512.. > I am a little confused by the cdevsw entries in the driver (ata and acd): how > is physread mapped ? when ? > can you shine some light on this ? The ata and acd do the same thing but I > don't see where the actual read code is. Ahh, the ATA driver uses the default physread/write that the system provides in /sys/kern/kern_physio.c Oh, that patch I sent you is not quite enough actually, you also need to set the blocksize (via the CDRIOCSETBLOCKSIZE ioctl) to 2352 bytes. I'll get the patch and a couble of other minot corrections committed asap... -Søren To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-multimedia" in the body of the message
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?200101110727.IAA83374>