* ALi m5455
ac97_clock - AC'97 codec clock base (0 = auto-detect)
+ joystick - Enable joystick (default off)
+ mpu_port - MPU401 port # (0 = disabled, 0x330,0x300)
ac97_quirk - AC'97 workaround for strange hardware (-1 = default)
-1 = default, don't override
0 = disable
2 = swap headphone and master controls
3 = for AD1985, turn on OMS bit and use headphone
4 = for ALC65x, turn on the jack sense mode
- 5 = inverted EAPD implementation
buggy_irq - Enable workaround for buggy interrupts on some
motherboards (default off)
if you still encounter too fast playback, specify the clock
explicitly via the module option "ac97_clock=41194".
- Joystick/MIDI ports are not supported by this driver. If your
- motherboard has these devices, use the ns558 or snd-mpu401
- modules, respectively.
+ The joystick and MPU-401 are supported only certain hardwares.
+ MPU401 is experimental, It doesn't work perfectly.
The ac97_quirk option is used to enable/override the workaround
for specific devices. Some hardware have swapped output pins
buffer_top - specify buffer top address
use_cache - 0 or 1 (disabled by default)
vaio_hack - alias buffer_top=0x25a800
- reset_workaround - enable AC97 RESET workaround for some laptops
Module supports autoprobe and multiple chips (max 8).
but some doesn't have ISA PnP. You'll need to speicfy isapnp=0
and proper hardware parameters in the case without ISA PnP.
- Note: some laptops need a workaround for AC97 RESET. For the
- known hardware like Dell Latitude LS and Sony PCG-F305, this
- workaround is enabled automatically. For other laptops with a
- hard freeze, you can try reset_workaround=1 option.
-
Note: This driver is really crappy. It's a porting from the
OSS driver, which is a result of black-magic reverse engineering.
The detection of codec will fail if the driver is loaded *after*
git://git.onelab.eu / linux-2.6.git / blobdiff