User:ClemensLadisch

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Revision as of 08:41, 25 October 2007 by ClemensLadisch (Talk | contribs)

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CMI8788 driver status

This driver is based on C-Media's driver (from the Bgears website; apparently it's so buggy that C-Media doesn't want to publish it).

Known BUGS:

  • distorted output
  • sometimes hangs the computer when loading the driver

On other words, it is completely unusable at the moment.

I have now a card; I'll complete the driver in the next few weeks or so.

Missing features:

  • Front panel output/input not yet supported.
  • Mixer control handling needs to be rewritten.
  • Missing support for volume controls of PCM1796 DAC.

my TODO list

  1. CMI8788 driver
    ca. 70%
  2. use hrtimers in the MIDI sequencer
    ca. 25%
  3. usb-audio: allow shorter-than-1ms periods for high-speed devices (just remove the code that rounds periods to USB frames)
    0%
  4. usb-audio: handle MIDI write errors better
  5. move non-public headers out of linux/include/sound/
  6. PCI: annotate in-memory data structures read by bus master chips with __le/be
  7. implement (some?) OSS 4 API ioctls
  8. test (i.e., use) alsa-python
  9. use dev_printk?
  10. various subsystem send different and too many MIDI reset commands when a port is closed
  11. usb-audio: restructure
  12. OSS emulation by redirecting to user space (like FUSE, but we need ioctls and mmap)
  13. MIDI synth: support more sysex commands
  14. MIDI synth: MIDI tuning
  15. ymfpci: MIDI synth
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