Tomoaki Hayasaka <hayasakas@postman.riken.go.jp> has added support for the
Sony PCDA-J1/A USB Jog Shuttle controller.
Go to his page at http://hellfire.riken.go.jp/~hayasaka/sonyjog/ for
more information.
You need to compile the supplied sonyjog.c yourself as
a kernel module and load it. Use Makefile.jog and read the instructions
at the top.
Following Tomoaki's lead, Dan Dennedy purchased the popular ShuttlePro
and made a variation of the sonyjog driver called shuttlepro.
Currently, the ShuttlePro jog wheel, shuttle ring work, and the center
button immediately above the jog wheel starts playback at 1X speed.