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-rw-r--r--sound/isa/opti9xx/opti92x-ad1848.c10
1 files changed, 10 insertions, 0 deletions
diff --git a/sound/isa/opti9xx/opti92x-ad1848.c b/sound/isa/opti9xx/opti92x-ad1848.c
index fb1d0704f2f..ee1a824d8fc 100644
--- a/sound/isa/opti9xx/opti92x-ad1848.c
+++ b/sound/isa/opti9xx/opti92x-ad1848.c
@@ -501,6 +501,16 @@ static int __devinit snd_opti9xx_configure(struct snd_opti9xx *chip)
(chip->hardware == OPTi9XX_HW_82C930 ? 0x00 : 0x04),
0x34);
snd_opti9xx_write_mask(chip, OPTi9XX_MC_REG(5), 0x20, 0xbf);
+ /*
+ * The BTC 1817DW has QS1000 wavetable which is connected
+ * to the serial digital input of the OPTI931.
+ */
+ snd_opti9xx_write_mask(chip, OPTi9XX_MC_REG(21), 0x82, 0xff);
+ /*
+ * This bit sets OPTI931 to automaticaly select FM
+ * or digital input signal.
+ */
+ snd_opti9xx_write_mask(chip, OPTi9XX_MC_REG(26), 0x01, 0x01);
break;
#endif /* OPTi93X */