K 10
svn:author
V 6
adrian
K 8
svn:date
V 27
2013-02-20T11:20:51.348279Z
K 7
svn:log
V 197
Enable TX FIFO underrun interrupts.  This allows the TX FIFO threshold
adjustment code to now run.

Tested:

* AR5416, STA

TODO:

* Much more thorough testing on the other chips, AR5210 -> AR9287

END