ANNOUNCE: User-space System Device Enumeration (uSDE)

Mark Bellon
2003-10-27T20:42:31Z

Initial availability of User-Space System Device Enumeration (uSDE)
package, version 0.74, can be found at http://sourceforge.net/projects/usde

The uSDE provides an open framework for the enumeration (specification)
of system devices in a dynamic environment. Device handling is
implemented via plug-in programs known as policy methods. Policy methods
are free to handle their devices in any way, from trivial to complex -
anything from providing LSB device nodes to persistent device name
handling with
replacement and relocation strategies.

The uSDE depends on /sbin/hotplug (for dynamic insertions and removals),
sysfs (for device information) and /proc (various pieces of
information). It is not dependent on initrd - it explicitly scans sysfs
upon system startup to determine the initial device ensemble.

Part of the uSDE release is a collection of sample polices:

disk-ide-policy - handles IDE, EIDE, SATA and USB-EIDE disks. Implements
persistent device naming, automatic device replacement and automatic
device relocation features.

disk-scsi-policy - handles SCSI, IEEE-1394, FibreChannel and USB-SCSI
disks including multiported devices. Iplements persistent device naming,
automatic device replacement and automatic device relocation features.

multipath-policy - handles the automatic provisioning of multipathing
for multiported storage devices.

ethernet-policy - handles ethernet interefaces. Implements persistent
interface naming, interface anchoring, automatic device replacement and
automatic device relocation features.

floppy-policy - handles internal floppy disks.

simple-device-policy - a "catch all" policy for block and character devices.

devfs-policy - provides devfs device names.

lsb-policy - provides LSB device names.

Location: http://sourceforge.net/projects/usde
Mailing list: usde-general@lists.sourceforge.net

mark