Messages in this thread | | | Date | Fri, 17 Feb 2006 21:01:07 +0000 | From | Christoph Hellwig <> | Subject | Re: CD writing in future Linux (stirring up a hornets' nest) |
| |
On Fri, Feb 17, 2006 at 03:55:34PM -0500, Bill Davidsen wrote: > Christoph Hellwig wrote: > > >You can access SCSI CDs using /dev/sr* for burning CDs. It's backed by > >the > >same highlevel code as SG_IO on /dev/hd* while the lowerlevel handling is > >done transparently by the scsi midlayer, the same code used by /dev/sg* > >for > >the below-blocklayer handling. > > > This may be true if you create your own /dev entries, or are a udev guru > and can get it to generate the right entries. And if you use ATAPI > devices it works fine... But with Fedora and SuSE it appears that USB > devices which appear as SCSI aren't functional. I tested the Fedora > myself, and after killing udevd and making some entries by hand it > worked once. > > Now if you can access SCSI burners more power to you, with FC4 up to > recent updates, my one convenient real SCSI device most definitely > doesn't work, and I havd to fall the system back to Slackware and 2.4 > which was on it before. > > Because you know how to get around the problems doesn't really suggest > that there aren't any.
How are the dev entires related to CD burning? If the device entries don't appear for you that's a problem, but you deserve what you get for using a POS like udev. If you have a sd or sr node you can use SG_IO on it, period. Whether you can actually burn a CD of course depends on the capability of the device. I don't have a CD burner connected through usb, but I couldn't think of a reason the usb <-> atapi bridge would make problems with the scsi commands used to burn a CD. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
| |