MICA Microphone
[Device Drivers]

Defines
#define	dev_open_DEV_MICA2_MIC()   mos_mutex_lock(&mic_mutex)
	gain an exclusive lock on the Microphone. Any other threads calling dev_open_DEV_MICA2_MIC() will block until the owner calls dev_close_DEV_MICA2_MIC().
#define	dev_close_DEV_MICA2_MIC()   mos_mutex_unlock(&mic_mutex)
	release exclusive lock on the Microphone. Any other thread blocking on dev_open_DEV_MICA2_MIC() will now unblock.
Functions
uint16_t	dev_read_DEV_MICA2_MIC (void *buf, uint16_t count)
	read from the Microphone into buf.
uint16_t	dev_write_DEV_MICA2_MIC (const void *buf, uint16_t count)
	not supported for the MICA2 Microphone.
uint8_t	dev_mode_DEV_MICA2_MIC (uint8_t md)
	change the status of the MICA2 Microphone. Accepted parameters are: DEV_MODE_OFF: Turn the device off. DEV_MODE_ON: Turn the device on.
uint8_t	dev_ioctl_DEV_MICA2_MIC (int8_t request,...)
	not supported for the MICA2 Microphone.
Variables
mos_mutex_t	mic_mutex

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Detailed Description

This group contains functions associated with the MICA Microphone. This applies to the MICAz and MICA2 platforms.

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Function Documentation

uint8_t dev_ioctl_DEV_MICA2_MIC (  int8_t  request,   ... )

Parameters: request  ignored. ...  ignored. Returns: DEV_BAD_IOCTL

uint8_t dev_mode_DEV_MICA2_MIC (  uint8_t  md  )

Parameters: md  The mode you wish to change to. Returns: DEV_OK or DEV_UNSUPPORTED.

uint16_t dev_read_DEV_MICA2_MIC (  void *  buf, uint16_t  count )

Parameters: count  the number of bytes to read. A value of '1' will read an 8-bit value; a value of '2' will read a 16-bit value. any other value will return DEV_UNSUPPORTED. buf  the buffer to store the result in. Returns: the number of bytes read. Must be either '1' or '2'.

uint16_t dev_write_DEV_MICA2_MIC (  const void *  buf, uint16_t  count )

Parameters: buf  ignored. count  ignored. Returns: DEV_UNSUPPORTED

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Variable Documentation

mos_mutex_t mic_mutex

For internal use only. Used by the dev_open and dev_close functions.

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