Messages in this thread | | | From | Joerg Schilling <> | Date | Mon, 13 Feb 2006 13:11:27 +0100 | Subject | Re: CD writing in future Linux (stirring up a hornets' nest) |
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Bill Davidsen <davidsen@tmr.com> wrote:
> I notice that the first thing people suggest is to make things like > udev, hal and sysfs required instead of optional to do something as > simple as burn a CD. As I mentioned before, if the kernel provided a > list of devices then applications wouldn't break every time a new kernel > came out which needs a new this, and new that, and a few new other > support things.
This would make sense in case that a useful definition with a granted lifetime of at least 10 years would be implemented.
> The kernel could provide a list of devices by category. It doesn't have
What if the kernel does not understand the cetegory?
Common oddities:
- Mac OS X tries to distinct between CD/DVD writers and CD/DVD-ROM although there is only one device class.
- Older CD-writers identified as WORM although a CD-R is not a WORM.
> to name them, run scripts, give descriptions, or paint them blue. Just a > list of all block devices, tapes, by major/minor and category (ie. > block, optical, floppy) would give the application layer a chance to do > it's own interpretation. HAL is great, but because it's not part of the > kernel it's also going to suffer from "tracking error" for some changes. > I find it easier to teach someone to use -scanbus than to explain how to > make rules for udev.
As this categorisation does not work, we need a way to find all devices that talk SCSI and let the application decicde what device is supported.
> Worth repeating: I find it easier to teach someone to use -scanbus than > to explain how to make rules for udev. HAL is the right answer, but *in* > the kernel, where it will track changes. Since -scanbus tells you a > device is a CDrecorder, or something else, *any user* is likely to be > able to tell it from DCD, CD-ROM, etc. Nice like of text for most devices...
So you seem to agree with me.
Jörg
-- EMail:joerg@schily.isdn.cs.tu-berlin.de (home) Jörg Schilling D-13353 Berlin js@cs.tu-berlin.de (uni) schilling@fokus.fraunhofer.de (work) Blog: http://schily.blogspot.com/ URL: http://cdrecord.berlios.de/old/private/ ftp://ftp.berlios.de/pub/schily - 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/
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