1config DM_PWM 2 bool "Enable support for pulse-width modulation devices (PWM)" 3 depends on DM 4 help 5 A pulse-width modulator emits a pulse of varying width and provides 6 control over the duty cycle (high and low time) of the signal. This 7 is often used to control a voltage level. The more time the PWM 8 spends in the 'high' state, the higher the voltage. The PWM's 9 frequency/period can be controlled along with the proportion of that 10 time that the signal is high. 11