Is there a general rule, say it takes me a week to write the software to a
SEEPROM in an RTOS would it take twice as long (or longer) with Linux? For
example, I have a friend that was given a sample device driver to a device
very similiar to a SEEPROM and it took him a little over 3 weeks to complete
(and this is after inheriting it from the guy that was working on it). To
me using VxWorks, I believe I could have pumped this out in a week.
Secondly, I need to be able to sit on an interrupt from a UART FIFO and
stuff characters into to it everytime the flag says half-empty (hi-speed
stuff). I do not want to 'poll' this, I want to write an ISR to handle
this. Is this difficult to do in Linux and is there any place that I can
find an example of this type of work?