comedi_arm_channel — arm a subdevice channel
#include <comedilib.h>
int comedi_arm_channel( | comedi_t * device, |
| unsigned int subdevice, | |
| unsigned int channel, | |
unsigned int source); |
This function arms a specified channel of a subdevice. It may, for
example, arm a counter to begin counting. The source parameter specifies what source
should trigger the subdevice to begin. The possible sources are
driver-dependant. This function is only useable on subdevices that
provide support for the INSN_CONFIG_ARM
configuration instruction. Some subdevices treat this as an
instruction to arm the whole subdevice and ignore the specified
channel. For such subdevices, comedi_arm is normally
called instead.