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-rw-r--r--Documentation/sound/alsa/CMIPCI.txt10
1 files changed, 7 insertions, 3 deletions
diff --git a/Documentation/sound/alsa/CMIPCI.txt b/Documentation/sound/alsa/CMIPCI.txt
index 4b2b15387056..664be46566b8 100644
--- a/Documentation/sound/alsa/CMIPCI.txt
+++ b/Documentation/sound/alsa/CMIPCI.txt
@@ -1,5 +1,5 @@
- Brief Notes on C-Media 8738/8338 Driver
- =======================================
+ Brief Notes on C-Media 8338/8738/8768/8770 Driver
+ =================================================
Takashi Iwai <tiwai@suse.de>
@@ -212,7 +212,9 @@ MIDI CONTROLLER
The MPU401-UART interface is disabled as default. You need to set
module option "mpu_port" with a valid I/O port address to enable the
MIDI support. The valid I/O ports are 0x300, 0x310, 0x320 and 0x330.
-Choose the value which doesn't conflict with other cards.
+Choose the value which doesn't conflict with other cards. With
+CMI8738 and newer chips, you can use "mpu_port=1" to use a PCI port
+address that does not conflict with any other card.
There is _no_ hardware wavetable function on this chip (except for
OPL3 synth below).
@@ -230,6 +232,8 @@ Set "fm_port" module option for more cards.
The output quality of FM OPL/3 is, however, very weird.
I don't know why..
+CMI8768 and newer chips do not have the FM synth.
+
Joystick and Modem
------------------