Commit | Line | Data |
---|---|---|
2d7a548a JRN |
1 | Kernel driver aspeed-pwm-tacho |
2 | ============================== | |
3 | ||
4 | Supported chips: | |
5 | ASPEED AST2400/2500 | |
6 | ||
7 | Authors: | |
8 | <jaghu@google.com> | |
9 | ||
10 | Description: | |
11 | ------------ | |
12 | This driver implements support for ASPEED AST2400/2500 PWM and Fan Tacho | |
13 | controller. The PWM controller supports upto 8 PWM outputs. The Fan tacho | |
14 | controller supports up to 16 tachometer inputs. | |
15 | ||
16 | The driver provides the following sensor accesses in sysfs: | |
17 | ||
9e929c67 | 18 | =============== ======= ===================================================== |
2d7a548a JRN |
19 | fanX_input ro provide current fan rotation value in RPM as reported |
20 | by the fan to the device. | |
21 | ||
22 | pwmX rw get or set PWM fan control value. This is an integer | |
23 | value between 0(off) and 255(full speed). | |
9e929c67 | 24 | =============== ======= ===================================================== |