[ECOS] polled serial

[Andy Simpkins]

Hi there,

Assuming that I have understood things properly, cyg_io_read is a blocking
function, i.e. once called it will only return when characters have been
received from the serial port.   Is there another function available to
either return the amount of data currently held in the receive buffer (the
eCos serial buffer NOT that of the UART) or a non blocking read function
(i.e. returns NULL if there is nothing currently in the serial buffer)?

Kind regards

Andy

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