What steps will reproduce the problem? 1. none

What is the expected output? What do you see instead? PTP::MoveObject() assign parent to params array at position 2, while there is only 0 and 1 available.

What version of the product are you using? On what operating system? /trunk@r561

Please provide any additional information below. Issue found in minimosd-extra PTPCamera should be fixed in arducam-osd too. https://code.google.com/p/minimosd-extra/issues/detail?id=27

The PTP project and coding is stopped. Canon has no PowerShot cameras which are PTP Remote Control able anymore. Probably those old libraries are not compatible with the curent arduino IDE. It would need to be rewritten.