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- Analog Joystick Support on ALSA Drivers
- =======================================
- Oct. 14, 2003
- Takashi Iwai <tiwai@suse.de>
- General
- -------
- First of all, you need to enable GAMEPORT support on Linux kernel for
- using a joystick with the ALSA driver. For the details of gameport
- support, refer to Documentation/input/joystick.txt.
- The joystick support of ALSA drivers is different between ISA and PCI
- cards. In the case of ISA (PnP) cards, it's usually handled by the
- independent module (ns558). Meanwhile, the ALSA PCI drivers have the
- built-in gameport support. Hence, when the ALSA PCI driver is built
- in the kernel, CONFIG_GAMEPORT must be 'y', too. Otherwise, the
- gameport support on that card will be (silently) disabled.
- Some adapter modules probe the physical connection of the device at
- the load time. It'd be safer to plug in the joystick device before
- loading the module.
- PCI Cards
- ---------
- For PCI cards, the joystick is enabled when the appropriate module
- option is specified. Some drivers don't need options, and the
- joystick support is always enabled. In the former ALSA version, there
- was a dynamic control API for the joystick activation. It was
- changed, however, to the static module options because of the system
- stability and the resource management.
- The following PCI drivers support the joystick natively.
- Driver Module Option Available Values
- ---------------------------------------------------------------------------
- als4000 joystick_port 0 = disable (default), 1 = auto-detect,
- manual: any address (e.g. 0x200)
- au88x0 N/A N/A
- azf3328 joystick 0 = disable, 1 = enable, -1 = auto (default)
- ens1370 joystick 0 = disable (default), 1 = enable
- ens1371 joystick_port 0 = disable (default), 1 = auto-detect,
- manual: 0x200, 0x208, 0x210, 0x218
- cmipci joystick_port 0 = disable (default), 1 = auto-detect,
- manual: any address (e.g. 0x200)
- cs4281 N/A N/A
- cs46xx N/A N/A
- es1938 N/A N/A
- es1968 joystick 0 = disable (default), 1 = enable
- sonicvibes N/A N/A
- trident N/A N/A
- via82xx(*1) joystick 0 = disable (default), 1 = enable
- ymfpci joystick_port 0 = disable (default), 1 = auto-detect,
- manual: 0x201, 0x202, 0x204, 0x205(*2)
- ---------------------------------------------------------------------------
- *1) VIA686A/B only
- *2) With YMF744/754 chips, the port address can be chosen arbitrarily
- The following drivers don't support gameport natively, but there are
- additional modules. Load the corresponding module to add the gameport
- support.
- Driver Additional Module
- -----------------------------
- emu10k1 emu10k1-gp
- fm801 fm801-gp
- -----------------------------
- Note: the "pcigame" and "cs461x" modules are for the OSS drivers only.
- These ALSA drivers (cs46xx, trident and au88x0) have the
- built-in gameport support.
- As mentioned above, ALSA PCI drivers have the built-in gameport
- support, so you don't have to load ns558 module. Just load "joydev"
- and the appropriate adapter module (e.g. "analog").
- ISA Cards
- ---------
- ALSA ISA drivers don't have the built-in gameport support.
- Instead, you need to load "ns558" module in addition to "joydev" and
- the adapter module (e.g. "analog").
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