Address the WM8753 directly

Ed Kapitein ed at
Mon Nov 8 22:18:29 CET 2010

 Hi All,

I want to hack a bit on the Wolfson sound chip.
The ultimate goal is to make a FR to FR modem conection, using the GSM
voice band.
But the first step would be to generate a sine wave and feed it to the
wolfson chip.

I know i can use the alsa driver, but i would like to experiment a bit
by addressing the hardware directly.

Does anyone have pointers on how to address the hardware and its
registers etc?
I want to write the program in C and need a starting point.

Example programs would be great, but all help is welcome!

Kind regards,

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