1 .. SPDX-License-Identifier: GPL-2.0-or-later
3 Kernel driver aspeed-g6-pwm-tach
4 =================================
10 <billy_tsai@aspeedtech.com>
14 This driver implements support for ASPEED AST2600 Fan Tacho controller.
15 The controller supports up to 16 tachometer inputs.
17 The driver provides the following sensor accesses in sysfs:
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
24 The larger divisor, the less rpm accuracy and the less
25 affected by fan signal glitch.
26 =============== ======= ======================================================