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Checkpoint: more work in progress on mixer load/save

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px4dev
2012-08-05 14:13:33 -07:00
parent 145a6c4c49
commit 9804776a0c
8 changed files with 161 additions and 151 deletions
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apps/drivers/drv_mixer.h
+4
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@@ -80,11 +80,15 @@ struct MixInfo
* is allocated following the MixInfo structure. If the allocation
* is too small, no mixer data is retured. The control_count field in
* the MixInfo.mixer structure is always updated.
*
* If no mixer is assigned for the given index, the ioctl returns ENOENT.
*/
#define MIXERIOCGETMIXER(_mixer) _MIXERIOC(0x20 + _mixer)
/**
* Copy a mixer from *(struct MixMixer *)arg to the device.
*
* If arg is zero, the mixer is deleted.
*/
#define MIXERIOCSETMIXER(_mixer) _MIXERIOC(0x40 + _mixer)