select() should work for you, similar to trigering an interrupt. Instead
of triggering an ISR select() will sleep until there's an event on the
file descriptors. So you open() the device for the serial port and
select() on it. When you return from select() the return value will tell
you why
Not sure if this is the right list or not, but I could really use some
pointers.
How can I code trap serial port interrupts in my C program?
For example, I want to read values from a serial device every
user-specified number of seconds, calculate some stuff and then sit for
a while. Should the
That looks exactly like what I want. I need to resume programming on
either serial activity and at periodic intervals. Eventually, I plan to
toss networking into the mix, and this program will function as a
daemon, but I'm relatively new to programming for *nix (though not new
to programming in
It appears that my experience on microcontrollers is throwing me off.
I'm used to having a touch more control at the hardware level.
It sounds like I would be best served by setting up a loop that sleeps
for a certain number of milliseconds, and then looks for new data in the
serial port buffers.
On Ter, 2003-08-05 at 22:30, J. Seth Henry wrote:
Not sure if this is the right list or not, but I could really use some
pointers.
How can I code trap serial port interrupts in my C program?
You can't attach to interrupts in a userland program, but you can access
serial ports by opening any
On Wed, 6 Aug 2003 07:00, J. Seth Henry wrote:
Not sure if this is the right list or not, but I could really use some
pointers.
How can I code trap serial port interrupts in my C program?
For any modern hosted system interrupt trapping and servicing is in the
province of the system -- it
