* \li Series 4 USB AVRs (ATMEGAxxU4)
* \li Series 2 USB AVRs (AT90USBxx2, ATMEGAxxU2)
* \li Series AU XMEGA AVRs (ATXMEGAxxxAxU)
- * \li Series B XMEGA AVRs (ATXMEGAxxxBxU)
- * \li Series C XMEGA AVRs (ATXMEGAxxxCxU)
+ * \li Series B XMEGA AVRs (ATXMEGAxxxBx)
+ * \li Series C XMEGA AVRs (ATXMEGAxxxCx)
*
* \section Sec_Info USB Information:
*
* MIDI program supporting MIDI IN devices.
*
* If the HWB is not pressed, channel 1 (default piano) is used. If
- * the HWB is set, then channel 10 (default percussion) is selected.
+ * the HWB is pressed, then channel 10 (default percussion) is selected.
*
* This device implements MIDI-THRU mode, with the IN MIDI data being
* generated by the device itself. OUT MIDI data is discarded.