d91958815d
Cc: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
45 lines
2.1 KiB
Text
45 lines
2.1 KiB
Text
Preface.
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This is a new low-level driver to support analog joystick attached to
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Crystal SoundFusion CS4610/CS4612/CS4615. This code is based upon
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Vortex/Solo drivers as an example of decoration style, and ALSA
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0.5.8a kernel drivers as an chipset documentation and samples.
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This version does not have cooked mode support; the basic code
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is present here, but have not tested completely. The button analysis
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is completed in this mode, but the axis movement is not.
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Raw mode works fine with analog joystick front-end driver and cs461x
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driver as a backend. I've tested this driver with CS4610, 4-axis and
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4-button joystick; I mean the jstest utility. Also I've tried to
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play in xracer game using joystick, and the result is better than
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keyboard only mode.
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The sensitivity and calibrate quality have not been tested; the two
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reasons are performed: the same hardware cannot work under Win95 (blue
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screen in VJOYD); I have no documentation on my chip; and the existing
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behavior in my case was not raised the requirement of joystick calibration.
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So the driver have no code to perform hardware related calibration.
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The patch contains minor changes of Config.in and Makefile files. All
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needed code have been moved to one separate file cs461x.c like ns558.c
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This driver have the basic support for PCI devices only; there is no
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ISA or PnP ISA cards supported. AFAIK the ns558 have support for Crystal
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ISA and PnP ISA series.
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The driver works with ALSA drivers simultaneously. For example, the xracer
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uses joystick as input device and PCM device as sound output in one time.
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There are no sound or input collisions detected. The source code have
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comments about them; but I've found the joystick can be initialized
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separately of ALSA modules. So, you can use only one joystick driver
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without ALSA drivers. The ALSA drivers are not needed to compile or
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run this driver.
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There are no debug information print have been placed in source, and no
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specific options required to work this driver. The found chipset parameters
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are printed via printk(KERN_INFO "..."), see the /var/log/messages to
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inspect cs461x: prefixed messages to determine possible card detection
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errors.
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Regards,
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Viktor
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