ALSA: ca0106: Allow different sound cards to use different SPI channel mappings.

Signed-off-by: Andy Owen <andy-alsa@ultra-premium.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
diff --git a/sound/pci/ca0106/ca0106.h b/sound/pci/ca0106/ca0106.h
index 14b8d9a..f19c110 100644
--- a/sound/pci/ca0106/ca0106.h
+++ b/sound/pci/ca0106/ca0106.h
@@ -670,8 +670,9 @@
 			   gpio_type = 2 -> shared side-out/line-in. */
 	int i2c_adc;	/* with i2c_adc=1, the driver adds some capture volume
 			   controls, phone, mic, line-in and aux. */
-	int spi_dac;	/* spi_dac=1 adds the mute switch for each analog
-			   output, front, rear, etc. */
+	u16 spi_dac;	/* spi_dac = 0 -> no spi interface for DACs
+			   spi_dac = 0x<front><rear><center-lfe><side>
+			   -> specifies DAC id for each channel pair. */
 };
 
 // definition of the chip-specific record