openwrt/target/linux/generic-2.6/files/drivers/pwm/Kconfig

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#
# PWM infrastructure and devices
#
menuconfig GENERIC_PWM
tristate "PWM Support"
depends on SYSFS
help
This enables PWM support through the generic PWM library.
If unsure, say N.
if GENERIC_PWM
config ATMEL_PWM
tristate "Atmel AT32/AT91 PWM support"
depends on AVR32 || ARCH_AT91
help
This option enables device driver support for the PWMC
peripheral channels found on certain Atmel processors.
Pulse Width Modulation is used many for purposes, including
software controlled power-efficient backlights on LCD
displays, motor control, and waveform generation. If
unsure, say N.
config GPIO_PWM
tristate "PWM emulation using GPIO"
help
This option enables a single-channel PWM device using
a kernel interval timer and a GPIO pin. If unsure, say N.
endif