[ALSA] azt3328.c: small cleanup patch

- change 'PCM' mixer control (pre/post 3D) to 'PCM Output Route'
- improve snd_azf3328_debug_show_ports
- less aggressive module init message
- document Bass/Treble non-bug (prompted by user report - Thank You!!)
- add some items to card description
- add some I/O register documentation
- enhance copyright

Signed-off-by: Andreas Mohr <andi@lisas.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>

1 files changed, 2 insertions, 2 deletions

diff --git a/sound/pci/azt3328.h b/sound/pci/azt3328.h
index b4f3e3cd006b..679fa992e2bc 100644
--- a/sound/pci/azt3328.h
+++ b/sound/pci/azt3328.h
@@ -106,8 +106,8 @@
   #define IRQ_RECORDING                 0x0002
   #define IRQ_MPU401                    0x0010
   #define IRQ_TIMER                     0x0020 /* DirectX timer */
-  #define IRQ_UNKNOWN1                  0x0040 /* probably unused */
-  #define IRQ_UNKNOWN2                  0x0080 /* probably unused */
+  #define IRQ_UNKNOWN1                  0x0040 /* probably unused, or possibly I2S port? or gameport IRQ? */
+  #define IRQ_UNKNOWN2                  0x0080 /* probably unused, or possibly I2S port? or gameport IRQ? */
 #define IDX_IO_66H              0x66    /* writing 0xffff returns 0x0000 */
 #define IDX_IO_SOME_VALUE       0x68    /* this is set to e.g. 0x3ff or 0x300, and writable; maybe some buffer limit, but I couldn't find out more, PU:0x00ff */
 #define IDX_IO_6AH              0x6A    /* this WORD can be set to have bits 0x0028 activated (FIXME: correct??); actually inhibits PCM playback!!! maybe power management?? */