Deprecated functions
Function: comedi_dio_bitfield -- read/write multiple digital channels
Retval: int
Param: comedi_t * device
Param: unsigned int subdevice
Param: unsigned int write_mask
Param: unsigned int * bits
Status: deprecated
Description:
 This function is deprecated.  Use <function><link
 linkend="func-ref-comedi-dio-bitfield2">comedi_dio_bitfield2</link></function>
 instead.  It is equivalent to using <function>comedi_dio_bitfield2</function>
 with <parameter class="function">base_channel</parameter> set to
 <literal>0</literal>.

Function: comedi_from_phys -- convert physical units to sample
Retval: lsampl_t
Param: double data
Param: comedi_range * range
Param: lsampl_t maxdata
Status: deprecated
Description:
 Converts parameter <parameter class="function">data</parameter> given in
 physical units (<type>double</type>) into sample values
 (<type>lsampl_t</type>, between <literal>0</literal> and maxdata).
 The parameter <parameter class="function">range</parameter>
 represents the conversion information to use, and the parameter
 <parameter class="function">maxdata</parameter> represents the maximum possible data value for the
 channel that the data will be written to.

 Conversion is not affected by out-of-range behavior.  Out-of-range
 data parameters are silently truncated to the range <literal>0</literal>
 to <parameter class="function">maxdata</parameter>.

Function: comedi_get_timer -- timer information (deprecated)
Retval: int
Param: comedi_t * device
Param: unsigned int subdevice
Param: double frequency
Param: unsigned int * trigvar
Param: double * actual_frequency
Status: deprecated
Description:
 The function <function>comedi_get_timer</function> converts the frequency
 <parameter class="function">frequency</parameter>
 to a number suitable to send to the driver in a <type>comedi_trig</type>
 structure.  This function remains for compatibility with very
 old versions of Comedi, that converted sampling rates to timer
 values in the library.  This conversion is now done in the kernel,
 and every device has the timer type <constant>nanosec_timer</constant>, indicating
 that timer values are simply a time specified in nanoseconds.

Function: comedi_set_global_oor_behavior -- out-of-range behavior
Retval: int
Param: enum comedi_oor_behavior behavior
Status: deprecated
Description:
 This function changes the Comedilib out-of-range behavior.
 This currently affects the behavior of <function>comedi_to_phys</function> when
 converting endpoint sample values, that is, sample values
 equal to <literal>0</literal> or <parameter
 class="function">maxdata</parameter>.  If the out-of-range behavior is set to
 <constant>COMEDI_OOR_NAN</constant>, endpoint values are converted to
 <constant>NAN</constant>.  If the
 out-of-range behavior is set to <constant>COMEDI_OOR_NUMBER</constant>, the endpoint
 values are converted similarly to other values.

 The previous out-of-range behavior is returned.

Function: comedi_sv_init -- slowly-varying inputs
Retval: int
Param: comedi_sv_t * sv
Param: comedi_t * device
Param: unsigned int subdevice
Param: unsigned int channel
Status: deprecated
Description:
 The function <function>comedi_sv_init</function> initializes the slow varying Comedi
 structure pointed to by <parameter class="function">sv</parameter> to use the
 device <parameter class="function">device</parameter>, the analog input subdevice
 <parameter class="function">subdevice</parameter>, and the channel
 <parameter class="function">channel</parameter>.  The slow varying Comedi
 structure is used by
 <function><link linkend="func-ref-comedi-sv-measure">comedi_sv_measure</link></function>
 to accurately measure
 an analog input by averaging over many samples.  The default
 number of samples is 100.
Returns:
 This function returns <literal>0</literal> on success,
 <literal>-1</literal> on error.

Function: comedi_sv_measure -- slowly-varying inputs
Retval: int
Param: comedi_sv_t * sv
Param: double * data
Status: deprecated
Description:
 The function <function>comedi_sv_measure</function> uses the slowly varying Comedi
 structure pointed to by <parameter class="function">sv</parameter>
 to measure a slowly varying signal.  If successful,
 the result (in physical units) is stored in the location pointed
 to by <parameter class="function">data</parameter>, and the number of samples
 is returned.  On error, <literal>-1</literal>
 is returned.

Function: comedi_sv_update -- slowly-varying inputs
Retval: int
Param: comedi_sv_t * sv
Status: deprecated
Description:
 The function <function>comedi_sv_update</function> updates internal parameters of
 the slowly varying Comedi structure pointed to by
 <parameter class="function">sv</parameter>.

Function: comedi_timed_1chan -- streaming input (deprecated)
Retval: int
Param: comedi_t * device
Param: unsigned int subdevice
Param: unsigned int channel
Param: unsigned int range
Param: unsigned int aref
Param: double frequency
Param: unsigned int num_samples
Param: double * data
Status: deprecated
Description:
 Not documented.

Function: comedi_to_phys -- convert sample to physical units
Retval: double
Param: lsampl_t data
Param: comedi_range * range
Param: lsampl_t maxdata
Status: deprecated
Description:
 Converts parameter <parameter class="function">data</parameter> given in sample values
 (<type>lsampl_t</type>, between <literal>0</literal> and
 <parameter class="function">maxdata</parameter>) into physical units
 (<type>double</type>).  The parameter <parameter
 class="function">range</parameter>
 represents the conversion information to use, and the parameter
 <parameter class="function">maxdata</parameter> represents the maximum possible data value for the
 channel that the data was read.

 Conversion of endpoint sample values, that is, sample values
 equal to <literal>0</literal> or <parameter class="function">maxdata</parameter>,
 is affected by the Comedilib out-of-range
 behavior.  If the out-of-range behavior is set to
 <constant>COMEDI_OOR_NAN</constant>,
 endpoint values are converted to <constant>NAN</constant>.  If the out-of-range
 behavior is set to <constant>COMEDI_OOR_NUMBER</constant>, the endpoint values are
 converted similarly to other values.

 If there is an error, <constant>NAN</constant> is returned.

Function: comedi_trigger -- perform streaming input/output (deprecated)
Retval: int
Param: comedi_t * device
Param: comedi_trig * trig
Status: deprecated
Description:
 The function <function>comedi_trigger</function> instructs Comedi to
 perform the command specified by the trigger structure pointed to by
 <parameter class="function">trig</parameter>.
 The return value depends on
 the particular trigger being issued.  If there is an
 error, <literal>-1</literal> is returned.