libopencm3/libopencm3 — pull request #275 by rewolff (2014-02-17 14:58:02+00:00)
Title: fixed DAC buffer OFF bit is inverted

The DAC buffer can be turned off by SETTING a bit in the CR register. The bit is called B(uffer)OFF.
The implementation was wrong, it cleared the bit in the "...._disable" function and it set the bit in the "...._enable" function.