Specifications

Comedi
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Synopsis
#include <comedilib.h>
int comedi_set_other_source(comedi_t * device, unsigned int subdevice, unsigned int channel, unsigned int other, unsigned int
source);
Status
alpha
Description
This function allows selection of a source signal for something on a subdevice other than a gate (which uses comedi_set-
_gate_source()) or a clock (which uses comedi_set_clock_source()). The other parameter selects which ‘other’
we are configuring, and is driver-dependent. The source parameter selects the source we which to use for the ‘other’. If the
subdevice does not support configuring its ‘other’ sources on a per-channel basis, then the channel parameter will be ignored.
As an example, this function is used to select which PFI digital input channels should be used as the A/B/Z signals when running
a counter on an NI M-Series board as a quadrature encoder. The other parameter selects either the A, B, or Z signal, and the
source parameter is used to specify which PFI digital input channel the external A, B, or Z signal is physically connected to.
This function is only useable on subdevices that provide support for the INSN_CONFIG_SET_OTHER_SOURCE configuration
instruction.
Return value
0 on success, -1 on error.
5.4.6.12 comedi_set_routing
comedi_set_routing — select a routing for an output
Synopsis
#include <comedilib.h>
int comedi_set_routing(comedi_t * device, unsigned int subdevice, unsigned int channel, unsigned int routing);
Status
alpha
Description
This function configures a mutiplexed output channel which can output a variety of different signals (such as NI’s RTSI and
PFI lines). The routing parameter selects which signal should be routed to appear on the selected output channel, and is
driver-dependant.
The routing may be queried with the comedi_get_routing() function. This function is only useable on subdevices that
provide support for the INSN_CONFIG_SET_ROUTING configuration instruction.
Return value
0 on success, -1 on error.