NAME

       pwmround - Adapt a waveform to a PWM's actual capabilities

SYNOPSIS

       pwmround [-c chipno] [-p pwmno] [-P periodlength] [-D dutylength] [-O dutyoffset] [-v]

Description

       Typically  a  PWM cannot implement each and every waveform.  pwmround queries the PWM output specified by
       chipno and pwmno what the waveform will be actually implemented for a given request.

       The waveform to be adapted is described by periodlength, dutylength and dutyoffset.

Options

       -c chipno
              Each PWM chip has an identifying chip number.  pwmset configures  a  PWM  line  provided  by  chip
              number chipno.  chipno defaults to 0.

       -p pwmno
              Each  PWM  chip provides a number of PWM outputs.  pwmset configures the pwmnoth PWM output of the
              selected chip.  pwmno defaults to 0.

       -P periodlength
              periodlength in nanoseconds defines the length of the period of the waveform to be adapted to  the
              PWM's capabilities.

       -D dutylength
              in  nanoseconds  defines  the length of the active part of the waveform to be adapted to the PWM's
              capabilities.

       -O dutyoffset
              in nanoseconds defines the offset between the start of a period and  the  start  of  the  period's
              active part.

       -v     Emit some information during runtime.

SEE ALSO

       pwmset(1), pwmtestperf(1)

                                                                                                     PWMROUND(1)