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

duty_cycle

scale

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¶