| Kernel driver aspeed-pwm-tacho |
| ============================== |
| |
| Supported chips: |
| ASPEED AST2400/2500 |
| |
| Authors: |
| <jaghu@google.com> |
| |
| Description: |
| ------------ |
| This driver implements support for ASPEED AST2400/2500 PWM and Fan Tacho |
| controller. The PWM controller supports upto 8 PWM outputs. The Fan tacho |
| controller supports up to 16 tachometer inputs. |
| |
| The driver provides the following sensor accesses in sysfs: |
| |
| fanX_input ro provide current fan rotation value in RPM as reported |
| by the fan to the device. |
| |
| pwmX rw get or set PWM fan control value. This is an integer |
| value between 0(off) and 255(full speed). |
