crt: fix headers.

Signed-off-by: Daniel Stodden <daniel.stodden@gmail.com>
crt: rename rxcall data to priv.

Avoids confusion when mixing message and callee data ptrs.

Signed-off-by: Daniel Stodden <daniel.stodden@gmail.com>
crt: add tty_rxflush call.

Drop all input buffers. Useful for error recovery.

Signed-off-by: Daniel Stodden <daniel.stodden@gmail.com>
crt: syslog and stdio logging interfaces.

Signed-off-by: Daniel Stodden <daniel.stodden@gmail.com>
crt: flush tty output during init.

Signed-off-by: Daniel Stodden <daniel.stodden@gmail.com>
crt: nicer timers.

Signed-off-by: Daniel Stodden <daniel.stodden@gmail.com>
msp: header fixup.

Signed-off-by: Daniel Stodden <daniel.stodden@gmail.com>
msp: check feature presence.

Signed-off-by: Daniel Stodden <daniel.stodden@gmail.com>
msp: don't log msg errors on enosys.

Signed-off-by: Daniel Stodden <daniel.stodden@gmail.com>
msp: fix item count in msp_box req encoder.

Signed-off-by: Daniel Stodden <daniel.stodden@gmail.com>