tree b24067478554d5514db22ca6b107b8258e22b7e3
parent 35d07fd58f47284adecf219d3b73e4ea197cf29f
author Pete Zaitcev <zaitcev@redhat.com> 1176324446 -0700
committer Greg Kroah-Hartman <gregkh@suse.de> 1177705719 -0700

usbmon: bus zero

Add the "bus zero" feature to the usbmon. If a user process specifies bus
with number zero, it receives events from all buses. This is useful when
we wish to see initial enumeration when a bus is created, typically after
a modprobe. Until now, an application had to loop until a new bus could
be open, then start capturing on it. This procedure was cumbersome and
could lose initial events. Also, often it's too bothersome to find exactly
to which bus a specific device is attached.

Paolo Albeni provided the original concept implementation. I added the
handling of "bus->monitored" flag and generally fixed it up.

Signed-off-by: Pete Zaitcev <zaitcev@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>