[U-Boot-Users] API for serial functions

[Mike Frysinger]

is there a document that outlines the exact expected behavior of the serial 
functions ?  specifically, i'm looking to see if the serial_putc() function 
is supposed to wait until the character it is given has been fully 
transmitted over the wire, or if it is simply required to queue the character 
up into the hardware fifo and then return ...
-mike
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