Messages in this thread | | | From | "D. Hazelton" <> | Subject | Re: CD writing in future Linux (stirring up a hornets' nest) | Date | Tue, 14 Feb 2006 17:32:12 -0500 |
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On Tuesday 14 February 2006 13:59, Joerg Schilling wrote: > Greg KH <greg@kroah.com> wrote: > > On Mon, Feb 13, 2006 at 02:26:54PM +0100, Joerg Schilling wrote: > > > Greg KH <greg@kroah.com> wrote: > > > > On Fri, Feb 10, 2006 at 04:06:39PM -0500, Bill Davidsen wrote: > > > > > The kernel could provide a list of devices by category. It doesn't > > > > > have 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. > > > > > > > > It does so today in sysfs, that is what it is there for. > > > > > > Do you really whant libscg to open _every_ non-directory file under > > > /sys? > > > > Of course not. Here's one line of bash that gets you the major:minor > > file of every block device in the system: > > block_devices="$(echo /sys/block/*/dev /sys/block/*/*/dev)" > > > > The block devices are all in a specific location. > > Are you sure you understand the problem? > > It isd most unlikely that all SCSI devices are there. > > Jörg
Which is why there is also /sys/class/scsi_host and /sys/class/scsi_device those two, together with the block device data available via /sys/block should be enough to enumerate every ATAPI and SCSI device on the system.
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