ADC
[Device Drivers]

Defines
#define	dev_open_DEV_ADC()   mos_mutex_lock(&adc_mutex)
	gain an exclusive lock on the ADC. Any other threads calling dev_open_DEV_ADC() will block until the owner calls dev_close_DEV_ADC().
#define	dev_close_DEV_ADC()   mos_mutex_unlock(&adc_mutex)
	release exclusive lock on the ADC. Any other thread blocking on dev_open_DEV_ADC() will now unblock.
Functions
uint16_t	dev_read_DEV_ADC (void *buf, uint16_t count)
	read from the ADC into buf.
uint16_t	dev_write_DEV_ADC (const void *buf, uint16_t count)
	not supported for the ADC.
uint8_t	dev_mode_DEV_ADC (uint8_t md)
	change the status of the ADC. Accepted parameters are: DEV_MODE_OFF: Turn the device off. DEV_MODE_ON: Turn the device on.
uint8_t	dev_ioctl_DEV_ADC (int8_t request,...)
	send an IO Control to the ADC. Accepted parameters are: ADC_SET_CHANNEL, [int channel]
Variables
mos_mutex_t	adc_mutex

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Detailed Description

This group contains functions associated with the ADC Driver. This applies to the MICAz, MICA2, and TELOSb platforms.

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Function Documentation

uint8_t dev_ioctl_DEV_ADC (  int8_t  request,   ... )

Parameters: request  The requested action. ...  any required arguments for the specified IOCTL. Returns: DEV_OK or DEV_BAD_IOCTL.

uint8_t dev_mode_DEV_ADC (  uint8_t  md  )

Parameters: md  The mode you wish to change to. Returns: the mode that the ADC is now in.

uint16_t dev_read_DEV_ADC (  void *  buf, uint16_t  count )

Parameters: count  the number of bytes to read. A value of '1' will read a single byte from the ADC. Any other value will read a 16-bit value. buf  the buffer to store the results in. Returns: the number of bytes read (either 1 or 2).

uint16_t dev_write_DEV_ADC (  const void *  buf, uint16_t  count )

Parameters: count  ignored. buf  ignored. Returns: DEV_UNSUPPORTED

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Variable Documentation

mos_mutex_t adc_mutex

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

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