USB Library
From v2.9e to v2.9f

  1. hid_report_in and hid_report_out were removed from the stack. For HID based demos, the user buffers must be defined in user space. For certain product families that have specific USB RAM limitations, make sure that these buffers get located in that USB RAM space. Please refer to the existing HID demos to see how the hid_report_in and hid_report_out were moved to user space for those demos.

MLA - USB Library Help Version : 2.16
http://www.microchip.com/mla