[En-Nut-Discussion] Some questions ... debuging & device driver

[Ernst Stippl]

Hi!

1) Digging around in Nut/OS, I found:

   gets (buffer) 
  versa 
   fgets (stream, buffer, length)
  why is there no length parameter in "gets"?

2) Program testing and debugging

Inserting printf statements in programs helps debugging, but it seems
arcane. Is there any other
debugging help available? I am not talking about simulation! I need the
Ethernut HW environment
for debugging to make sense. see below!

3) I am trying to write a device driver for an addon board consisting of
Maxim MAX3110 SPI - to async RS232 chips.
Other than reading uartavr.*, uartspi.*, (uart*.* in general) is there any
other information about device drivers and DCBs, ICBs, .... and the like? It
seems uartspi is a bit old and I am unsure how much I can take it as a
sample.

regards 
ernst