linux driver for CM109 voip chipset

"Alfred E. Heggestad" <[email protected]>
Newsgroups gmane.linux.usb.devel
Message-ID <[email protected]>
hi

I have written a small driver for the C-Media CM109 chipset
used in USB VoIP phones like the KIP-1000. The source can
be found here:

  http://aeh.db.org/pub/cm109.c

CM109 datasheet:

  http://www.cmedia.com.tw/?q=en/USB/CM109

KIP-1000 VoIP phone:

  http://www.scan.co.uk/Products/ProductInfo.asp?WebProductID=470212


The sound is handled by the standard USB sound driver. The cm109.c
driver adds keyboard matrix scanning reporting to input subsystem,
and buzzer control (on/off) via sysfs (can be improved).

If there is any interest from linux people with this device, I can
always prepare a proper patch for it. Any feedback is welcome..


/alfred

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