I just assembled a mini IR receiver for the serial Port.
This device shows the IR-code by pulling DCD up or down.
As there is no software for FreeBSD supporting IR I would
like to have a try and code it myself. Unfortunately those
Pulses sent by the IR device sometimes only last a few
milliseconds. Now my question:
How can I sense the state of the DCD line that quick? I
can meassure the overal time with gettimeofday() but how
can I sense DCD?
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