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Diffstat (limited to 'Documentation/sound/alsa/CMIPCI.txt')
| -rw-r--r-- | Documentation/sound/alsa/CMIPCI.txt | 17 |
1 files changed, 11 insertions, 6 deletions
diff --git a/Documentation/sound/alsa/CMIPCI.txt b/Documentation/sound/alsa/CMIPCI.txt index 4b2b15387056..16935c8561f7 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> @@ -209,10 +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 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). @@ -230,6 +233,8 @@ 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 ------------------ |