PWM_SET_RELATIVE_DUT(9)            Pulse-Width Modulation (PWM)           PWM_SET_RELATIVE_DUT(9)



NAME
       pwm_set_relative_duty_cycle - Set a relative duty cycle value

SYNOPSIS
       int pwm_set_relative_duty_cycle(struct pwm_state * state, unsigned int duty_cycle,
                                       unsigned int scale);

ARGUMENTS
       state
           PWM state to fill

       duty_cycle
           relative duty cycle value

       scale
           scale in which duty_cycle is expressed

DESCRIPTION
       This functions converts a relative into an absolute duty cycle (expressed in nanoseconds),
       and puts the result in state->duty_cycle.

       For example if you want to configure a 50% duty cycle, call:

       pwm_init_state(pwm, state); pwm_set_relative_duty_cycle(state, 50, 100);
       pwm_apply_state(pwm, state);

       This functions returns -EINVAL if duty_cycle and/or scale are inconsistent (scale == 0 or
       duty_cycle > scale).

COPYRIGHT
Kernel Hackers Manual 4.8.                 January 2017                   PWM_SET_RELATIVE_DUT(9)