I have a nice Belkin USB adapter that came as part of their Sansa charging kit.
When I connect it to a C200 with OF, the battery starts charging and the music continues to play.
When I connect it to a C200V1 with Rockbox, the battery starts charging and the music continues to play.
When I connect it to a C200V2 with Rockbox, the USB connection screen comes on, Rockbox assuming I plugged it to a computer.
Sounds like something that can be fixed.
Thanks.