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Based on kernel version 4.16.1. Page generated on 2018-04-09 11:53 EST.

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	
18	fanX_input	ro	provide current fan rotation value in RPM as reported
19				by the fan to the device.
20	
21	pwmX		rw	get or set PWM fan control value. This is an integer
22				value between 0(off) and 255(full speed).
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