| 1 | # |
| 2 | # PWM infrastructure and devices |
| 3 | # |
| 4 | |
| 5 | menuconfig GENERIC_PWM |
| 6 | tristate "PWM Support" |
| 7 | depends on SYSFS |
| 8 | help |
| 9 | This enables PWM support through the generic PWM library. |
| 10 | If unsure, say N. |
| 11 | |
| 12 | if GENERIC_PWM |
| 13 | |
| 14 | config ATMEL_PWM |
| 15 | tristate "Atmel AT32/AT91 PWM support" |
| 16 | depends on AVR32 || ARCH_AT91 |
| 17 | help |
| 18 | This option enables device driver support for the PWMC |
| 19 | peripheral channels found on certain Atmel processors. |
| 20 | Pulse Width Modulation is used many for purposes, including |
| 21 | software controlled power-efficient backlights on LCD |
| 22 | displays, motor control, and waveform generation. If |
| 23 | unsure, say N. |
| 24 | |
| 25 | config GPIO_PWM |
| 26 | tristate "PWM emulation using GPIO" |
| 27 | help |
| 28 | This option enables a single-channel PWM device using |
| 29 | a kernel interval timer and a GPIO pin. If unsure, say N. |
| 30 | |
| 31 | endif |
| 32 | |
