1 Kernel driver pwm-fan
2 =====================
3
4 This driver enables the use of a PWM module to
5 generic PWM interface thus it is hardware inde
6 many SoCs, as long as the SoC supplies a PWM l
7 the generic PWM API.
8
9 Author: Kamil Debski <k.debski@samsung.com>
10
11 Description
12 -----------
13
14 The driver implements a simple interface for d
15 a PWM output. It uses the generic PWM interfac
16 a range of SoCs. The driver exposes the fan to
17 the hwmon's sysfs interface.
18
19 The fan rotation speed returned via the option
20 from the sampled interrupts from the tachomete
21
22 The driver provides the following sensor acces
23
24 =============== ======= ======================
25 fan1_input ro fan tachometer speed i
26 pwm1_enable rw keep enable mode, defi
27 0 -> disable pwm and r
28 1 -> enable pwm; if pw
29 2 -> enable pwm; if pw
30 3 -> enable pwm; if pw
31 pwm1 rw relative speed (0-255)
32 =============== ======= ======================
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