projects / linux-2.6-block.git / blame
| Commit | Line | Data |
|---|---|---|
| 7e1449cd BT |
1 | .. SPDX-License-Identifier: GPL-2.0-or-later |
| 2 | ||
| 3 | Kernel driver aspeed-g6-pwm-tach | |
| 4 | ================================= | |
| 5 | ||
| 6 | Supported chips: | |
| 7 | ASPEED AST2600 | |
| 8 | ||
| 9 | Authors: | |
| 10 | <billy_tsai@aspeedtech.com> | |
| 11 | ||
| 12 | Description: | |
| 13 | ------------ | |
| 14 | This driver implements support for ASPEED AST2600 Fan Tacho controller. | |
| 15 | The controller supports up to 16 tachometer inputs. | |
| 16 | ||
| 17 | The driver provides the following sensor accesses in sysfs: | |
| 18 | ||
| 19 | =============== ======= ====================================================== | |
| 20 | fanX_input ro provide current fan rotation value in RPM as reported | |
| 21 | by the fan to the device. | |
| 22 | fanX_div rw Fan divisor: Supported value are power of 4 (1, 4, 16 | |
| 23 | 64, ... 4194304) | |
| 24 | The larger divisor, the less rpm accuracy and the less | |
| 25 | affected by fan signal glitch. | |
| 26 | =============== ======= ====================================================== |