[ECOS] Re: Waiting I/O operation
Mon Jul 23 05:53:00 GMT 2007
I agree with Alexey. Normally a driver should work without kernel. But
if some functions in the driver require kernel, you can force this
configuration in driver CDL. I.e. the CAN I/O driver timed wait
operations already require a kernel. So I think it is O.K. to provide
callback functions if they are configurable via CDL.
It is up to the application engineer to use an allowed synchronization
in the callback function provided by the application. If the kernel is
present, then cyg_flag_setbits() should work. And if someone does not
like this, then he can disable callback (should be the default
configuration in CDL) and use 2 threads instead.
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