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Serial Port: _io_read() when four bytes have arrived.

Question asked by Kenny Koller on Sep 24, 2014
Latest reply on Sep 26, 2014 by Kenny Koller

Basically I want to peek at the driver see when 4 bytes that I am expecting have arrived and then do a single read. fstatus() seems to return 1 if data exists at all.


I'm using an interrupt-based driver.