diff options
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/sound/alsa/ALSA-Configuration.txt | 3 | ||||
| -rw-r--r-- | Documentation/sound/alsa/CMIPCI.txt | 13 |
2 files changed, 8 insertions, 8 deletions
diff --git a/Documentation/sound/alsa/ALSA-Configuration.txt b/Documentation/sound/alsa/ALSA-Configuration.txt index 38e775629c12..96bf25ccc1c5 100644 --- a/Documentation/sound/alsa/ALSA-Configuration.txt +++ b/Documentation/sound/alsa/ALSA-Configuration.txt @@ -367,9 +367,8 @@ Prior to version 0.9.0rc4 options had a 'snd_' prefix. This was removed. Module for C-Media CMI8338/8738/8768/8770 PCI sound cards. - mpu_port - port address of MIDI interface: + mpu_port - port address of MIDI interface (8338 only): 0x300,0x310,0x320,0x330 = legacy port, - 1 = integrated PCI port (8738 or later), 0 = disable (default) fm_port - port address of OPL-3 FM synthesizer (8x38 only): 0x388 = legacy port, diff --git a/Documentation/sound/alsa/CMIPCI.txt b/Documentation/sound/alsa/CMIPCI.txt index 664be46566b8..16935c8561f7 100644 --- a/Documentation/sound/alsa/CMIPCI.txt +++ b/Documentation/sound/alsa/CMIPCI.txt @@ -209,12 +209,13 @@ In addition to the standard SB mixer, CM8x38 provides more functions. 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. 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. +With CMI8338 chips, the MPU401-UART interface is disabled as default. +You need to set the module option "mpu_port" to a valid I/O port address +to enable MIDI support. Valid I/O ports are 0x300, 0x310, 0x320 and +0x330. Choose a value that doesn't conflict with other cards. + +With CMI8738 and newer chips, the MIDI interface is enabled by default +and the driver automatically chooses a port address. There is _no_ hardware wavetable function on this chip (except for OPL3 synth below). |