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| /* | |
| * | |
| * obj-m := fan.o | |
| * KDIR := /lib/modules/$(shell uname -r)/build | |
| * PWD := $(shell pwd) | |
| * | |
| * all: | |
| * $(MAKE) -C $(KDIR) M=$(PWD) modules | |
| * | |
| * clean: | |
| * $(MAKE) -C $(KDIR) M=$(PWD) clean | |
| */ | |
| #include <linux/module.h> | |
| #include <linux/kernel.h> | |
| #include <linux/init.h> | |
| #include <linux/acpi.h> | |
| #include <linux/thermal.h> | |
| #include <linux/dmi.h> | |
| MODULE_AUTHOR("Felipe Contreras <[email protected]>"); | |
| MODULE_DESCRIPTION("ASUS fan driver"); | |
| MODULE_LICENSE("GPL"); | |
| static struct thermal_cooling_device *cdev; | |
| static int fan_get_max_state(struct thermal_cooling_device *cdev, | |
| unsigned long *state) | |
| { | |
| *state = 0xff; | |
| return 0; | |
| } | |
| static int fan_get_cur_state(struct thermal_cooling_device *cdev, | |
| unsigned long *state) | |
| { | |
| struct acpi_object_list params; | |
| union acpi_object in_objs[1]; | |
| unsigned long long value; | |
| acpi_status r; | |
| params.count = ARRAY_SIZE(in_objs); | |
| params.pointer = in_objs; | |
| in_objs[0].type = ACPI_TYPE_INTEGER; | |
| in_objs[0].integer.value = 0; | |
| r = acpi_evaluate_integer(NULL, "\\_TZ.RFAN", ¶ms, &value); | |
| if (r != AE_OK) | |
| return r; | |
| *state = value; | |
| return 0; | |
| } | |
| static int fan_set(struct thermal_cooling_device *cdev, int fan, int speed) | |
| { | |
| struct acpi_object_list params; | |
| union acpi_object in_objs[2]; | |
| unsigned long long value; | |
| params.count = ARRAY_SIZE(in_objs); | |
| params.pointer = in_objs; | |
| in_objs[0].type = ACPI_TYPE_INTEGER; | |
| in_objs[0].integer.value = fan; | |
| in_objs[1].type = ACPI_TYPE_INTEGER; | |
| in_objs[1].integer.value = speed; | |
| return acpi_evaluate_integer(NULL, "\\_SB.PCI0.LPCB.EC0.SFNV", ¶ms, &value); | |
| } | |
| static int fan_set_cur_state(struct thermal_cooling_device *cdev, | |
| unsigned long state) | |
| { | |
| return fan_set(cdev, 1, state); | |
| } | |
| static int fan_set_auto(struct thermal_cooling_device *cdev) | |
| { | |
| return fan_set(cdev, 0, 0); | |
| } | |
| static const struct thermal_cooling_device_ops fan_cooling_ops = { | |
| .get_max_state = fan_get_max_state, | |
| .get_cur_state = fan_get_cur_state, | |
| .set_cur_state = fan_set_cur_state, | |
| }; | |
| static int __init fan_init(void) | |
| { | |
| if (strcmp(dmi_get_system_info(DMI_SYS_VENDOR), "ASUSTeK COMPUTER INC.")) | |
| return -ENODEV; | |
| cdev = thermal_cooling_device_register("Fan", NULL, &fan_cooling_ops); | |
| if (IS_ERR(cdev)) | |
| return PTR_ERR(cdev); | |
| fan_set_auto(cdev); | |
| return 0; | |
| } | |
| static void __exit fan_exit(void) | |
| { | |
| fan_set_auto(cdev); | |
| thermal_cooling_device_unregister(cdev); | |
| } | |
| module_init(fan_init); | |
| module_exit(fan_exit); |
I do have a "asus" part in sensors when it is modprobed. However, cpu temperature is pretty much all I got. So I still don't have any fan informations...
If you don't have any informations, maybe you do not have acpi stuff installed...
@asuxer: thanks for the lkml link, I hope it will keep going on...
OK I give up...
I recompiled the original Ubuntu kernel, but patched it with the diff from here
https://lkml.org/lkml/2013/10/8/800
(http://www.gossamer-threads.com/lists/linux/kernel/1796054)
Reboot, then I re-run sensors-detect, then sudo pwmconfig (from package fancontrol) but still I get
/usr/sbin/pwmconfig: There are no fan-capable sensor modules installed
felipec, please tell us what you did. You say it works perfectly for you?
@asuxer this module don't create /sys/class/hwmon devices. Control your fan with:
$ echo 200 | sudo tee /sys/class/thermal/cooling_deviceN/cur_state
- added full Makefile
- added "hack" to set fan back to automatic without unloading the module
-> forked here: https://gist.github.com/daringer/721e2cea17b570512097
Hi, I compiled and inserted the module too, but I'm stuck there, as the fan isn't seen by 'sensors' program, and there seems to be no way to control it.
What I'm I missing? Do I need to recompile the kernel with the modified asus-laptop.c?
By the way, I'm running Arch Linux on 3.10.9-1 stock kernel.
Thank you.