Open Sound System
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int (*adrv_calibrate_speed) (int dev, int nominal_rate, int true_rate);
The first paramater (
dev) is anways the audio engine number which is an index to the audio_engines table. The driver can use the audio_engines entry to find out some of the current parameters. In particular the devc, portc, portc_play and portc_record fields can be used to locate the driver defined structures for the audio engine.
This audio driver method is reserved for future use.
Audio driver entry point should return 0 if the call was successful. Negative return value (-errno) means that an error has occurred. However some of the functions have void type and they don't return any value.
|include/ossddk.h||Source file oss-current/kernel/framework/include/ossddk/ossddk.h|