[ECOS] pid_serial driver

[Grant Edwards]

> I'm starting on a driver for the 16c850 (a '550 superset) with
> the pid_serial driver as my starting point.  

OK, I've got a preliminary driver, but can't figure out how to
get it compiled when I do a "make".  I've found lots of good
documentation on how to write a driver, but nothing on what to
do with the source file when you're done.

I've put the source file in packages/io/serial/current/src/arm,
and added arm/16850_serial.c to the EXTRAS_COMPILE list in
packages/io/serial/current/src/PKGconf.mak. Now a "make" tries
to add arm/io_serial_16850_serial.o to libextras.a, but that
object file is never generated.

Anybody have a spare clue?

-- 
Grant Edwards
grante@visi.com