I have a ricoh CA-1 USB remote switch that fine on my A470 and my brother's G9, if the flash is off. Boot with CHDK, leave CHDK alt off, half press the switch, camera focuses, full press, the camera gets ready (LCD blanks), release switch picture is taken.
However, if the flash is on, the remote switch is flaky at best. It never takes a picture if the above steps are follow, but sometimes works if the switch is double or triple clicked. This goes for both cameras.
Has anyone else ran into this? Do other remote switches act this way (not work with flash)?
Is a core issue, or a platform issue? (Or a BTNAB?)