xref: /linux/Documentation/hwmon/npcm750-pwm-fan.rst (revision 4745dc8abb0a0a9851c07265eea01d844886d5c8)
1Kernel driver npcm750-pwm-fan
2=============================
3
4Supported chips:
5
6	NUVOTON NPCM750/730/715/705
7
8Authors:
9
10	<tomer.maimon@nuvoton.com>
11
12Description:
13------------
14This driver implements support for NUVOTON NPCM7XX PWM and Fan Tacho
15controller. The PWM controller supports up to 8 PWM outputs. The Fan tacho
16controller supports up to 16 tachometer inputs.
17
18The driver provides the following sensor accesses in sysfs:
19
20=============== ======= =====================================================
21fanX_input	ro	provide current fan rotation value in RPM as reported
22			by the fan to the device.
23
24pwmX		rw	get or set PWM fan control value. This is an integer
25			value between 0(off) and 255(full speed).
26=============== ======= =====================================================
27