checkpoint
Fix SPI mode setting
semantic change to usart::send_byte
Flash driver sketch
Compile drivers with safe language subset
Link with aeabi libc (for memcpy et al). Is this good?
Use Rust libc (with some additions) instead of Zinc\'s support lib
kstdio utility functions
Flash Attribute driver

Loads all keys into memory at initialization and exposes a
`get_attr(key, *value) -> Option<len>` function to get a particular key by
string.