K 10 svn:author V 5 ariff K 8 svn:date V 27 2006-01-18T01:05:34.000000Z K 7 svn:log V 219 MFC: - Locking fixes. Release lock while chn_intr(). - Mark MPSAFE since most of the locking procedures already implemented. - Turn on inverted external amplifier sense flag for selected boards. Tested by: bland END