NuttX-5.6 --------- This is the 53rd release of NuttX. This release includes one several new drivers for existing NuttX ports: * This port adds support for the RiT displays P14201 4-bpp, greyscale OLED. 4-bpp greyscale support was integrated into the NX graphics sub-system and verified using the TI/Luminary LP3S6965 Ethernet Evaluation Kit. * The M25Px driver was extended for the M24P1 FLASH part (see NOTE). * An I2C driver and (basic) SPI driver were added for the NXP LPC313x port. The I2C interface definition was extended to efficiently handle multiple I2C transfers. (Contributed by David Hewson.) As well as a few, important USB-related bugfixes (See the ChangeLog for details). This release also includes the beginnings of a port for the NXP LPC1768 MCU. However, it is too early for that port to be useful (stay tuned for a future announce of the availability of the LPC1768 port).