hi,
i am studying MB's example, frank, distributed with rtl-2.3 and can out
work out the mechanism of transfering data from the RT fifos to the
/dev/rtfx.
i can see that the non-RT part, in the main() section, opens up 3 files:
/dev/rtf1, /dev/rtf2, /dev/rtf3. is that right?
in the end of main(), still in the non-RT space, the contents of the
above devices is printed.
later on in the RT part of the frank module, 5 fifos are created as
follows:
int init_module(void)
{
-----
-----
---
c[0] = rtf_create(1, 4000);
c[1] = rtf_create(2, 4000);
.
.
c[4] = rtf_create(5,100);
----
----
-----
rtf_create_handler(3, &my_handler);
return 0;
}
i can also see that these are the fifos that are written to by the
thread_code(void *t) as follows:
thread_code(void *t){
------
-----
-----
rtf_put(fifo, data[fifo -1], 6);
-----
-----
----
return 0;
}
i have not yet worked out how the data is transfered from the fifos that
were written to in the thread code to the files /dev/rtfx... that were
printed out in the end.
can anyone please let me know?
thanks in advance.
emeel
sydney.
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