sudo@machine:~# dvgrab -debug all
Found AV/C device with GUID 0x000085000084213c
"dvgrab-007.dv": 10.30 MiB 75 frames timecode 00:00:07.06 date 2009.07.30 18:55:37
For an experiment, a DV clip recorded with Canon XH A1 was played on MVX100i too, the result is in file dvgrab-006.dv . To my best understanding, XH A1 allows to set "roll" ID which is hex "DEADFBEAF" in the case.
So far no attempts to use camera directly with kdenlive. I like capturing first, using later. ;)