This is the forth post in a weekly series tracking the development of Tock, a safe multi-tasking operating system for microcontrollers.

We started a mailing list for people working on Tock or ports of Tock to various chips and platforms.

@TethysSvensson did a complete pass cleaning up the source with rustfmt .

@emosenkis replaced instances of the unstable volatile_load / volatile_store calls with their stable variants write_volatile / read_volatile .

@alevy implemented a minimal driver for a Synposis USB IP (so far it only does enough setup to register as device on a Linux host).