* Re: [lm-sensors] /sys/class/hwmon/ numbering
2009-11-26 8:14 [lm-sensors] /sys/class/hwmon/ numbering Charles Prévot
@ 2009-11-26 13:24 ` Clemens Ladisch
2009-11-27 8:01 ` Jean Delvare
` (4 subsequent siblings)
5 siblings, 0 replies; 7+ messages in thread
From: Clemens Ladisch @ 2009-11-26 13:24 UTC (permalink / raw)
To: lm-sensors
Charles Prévot wrote:
> I have some problems configuring the fancontrol script, because each time I
> shutdown my computer, when I reboot my /sys/class/hwmon/ is different
> (subfolders hwmon? are numbered differently).
> What is responsible for this order ?
The order in which the respective drivers are initialized. Since the
initialization functions run in parallel, this is essentially random,
as you're seeing.
> How can I configure it to have i fixed order ?
The entries in /sys/class/hwmon/ are actually symbolic links (see the
output of "ls -l /sys/class/hwmon"), so you could refer to the devices
by their real path.
If some program requires paths in /sys/class/hwmon, you could blacklist
all the hwmon modules to prevent them from loading, then load them later
in some predetermined order. (How this is done depends on the
distribution, usually with files in /etc/modprobe.conf.)
HTH
Clemens
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^ permalink raw reply [flat|nested] 7+ messages in thread* Re: [lm-sensors] /sys/class/hwmon/ numbering
2009-11-26 8:14 [lm-sensors] /sys/class/hwmon/ numbering Charles Prévot
2009-11-26 13:24 ` Clemens Ladisch
@ 2009-11-27 8:01 ` Jean Delvare
2009-11-27 8:24 ` Charles Prévot
` (3 subsequent siblings)
5 siblings, 0 replies; 7+ messages in thread
From: Jean Delvare @ 2009-11-27 8:01 UTC (permalink / raw)
To: lm-sensors
Bonjour Charles,
On Thu, 26 Nov 2009 09:14:45 +0100, Charles Prévot wrote:
> I have some problems configuring the fancontrol script, because each time I
> shutdown my computer, when I reboot my /sys/class/hwmon/ is different
> (subfolders hwmon? are numbered differently).
> What is responsible for this order ?
> How can I configure it to have i fixed order ?
>
> my motherboard is a Asus MN2 SLI DELUXE with AMD CPU
> below some results:
>
> $ls -l /sys/class/hwmon/hwmon?/
> /sys/class/hwmon/hwmon0/:
> total 0
> -r--r--r-- 1 root root 4096 2009-11-26 08:30 name
> drwxr-xr-x 2 root root 0 2009-11-26 08:51 power
> lrwxrwxrwx 1 root root 0 2009-11-26 08:51 subsystem ->
> ../../../../class/hwmon
> -r--r--r-- 1 root root 4096 2009-11-26 08:51 temp1_crit
> -r--r--r-- 1 root root 4096 2009-11-26 08:35 temp1_input
> -rw-r--r-- 1 root root 4096 2009-11-26 08:51 uevent
>
> /sys/class/hwmon/hwmon1/:
> total 0
> lrwxrwxrwx 1 root root 0 2009-11-26 08:30 device -> ../../../ATK0110:00
> -r--r--r-- 1 root root 4096 2009-11-26 08:11 fan1_input
> -r--r--r-- 1 root root 4096 2009-11-26 08:30 fan1_label
> -r--r--r-- 1 root root 4096 2009-11-26 08:30 fan1_max
> -r--r--r-- 1 root root 4096 2009-11-26 08:11 fan1_min
> -r--r--r-- 1 root root 4096 2009-11-26 08:11 fan2_input
> -r--r--r-- 1 root root 4096 2009-11-26 08:30 fan2_label
> -r--r--r-- 1 root root 4096 2009-11-26 08:30 fan2_max
> -r--r--r-- 1 root root 4096 2009-11-26 08:11 fan2_min
> -r--r--r-- 1 root root 4096 2009-11-26 08:11 fan3_input
> -r--r--r-- 1 root root 4096 2009-11-26 08:30 fan3_label
> -r--r--r-- 1 root root 4096 2009-11-26 08:30 fan3_max
> -r--r--r-- 1 root root 4096 2009-11-26 08:11 fan3_min
> -r--r--r-- 1 root root 4096 2009-11-26 08:11 in0_input
> -r--r--r-- 1 root root 4096 2009-11-26 08:27 in0_label
> -r--r--r-- 1 root root 4096 2009-11-26 08:11 in0_max
> -r--r--r-- 1 root root 4096 2009-11-26 08:11 in0_min
> -r--r--r-- 1 root root 4096 2009-11-26 08:11 in1_input
> -r--r--r-- 1 root root 4096 2009-11-26 08:27 in1_label
> -r--r--r-- 1 root root 4096 2009-11-26 08:11 in1_max
> -r--r--r-- 1 root root 4096 2009-11-26 08:11 in1_min
> -r--r--r-- 1 root root 4096 2009-11-26 08:11 in2_input
> -r--r--r-- 1 root root 4096 2009-11-26 08:30 in2_label
> -r--r--r-- 1 root root 4096 2009-11-26 08:11 in2_max
> -r--r--r-- 1 root root 4096 2009-11-26 08:11 in2_min
> -r--r--r-- 1 root root 4096 2009-11-26 08:11 in3_input
> -r--r--r-- 1 root root 4096 2009-11-26 08:30 in3_label
> -r--r--r-- 1 root root 4096 2009-11-26 08:11 in3_max
> -r--r--r-- 1 root root 4096 2009-11-26 08:11 in3_min
> -r--r--r-- 1 root root 4096 2009-11-26 08:30 name
> drwxr-xr-x 2 root root 0 2009-11-26 08:30 power
> lrwxrwxrwx 1 root root 0 2009-11-26 08:30 subsystem ->
> ../../../../../../../class/hwmon
> -r--r--r-- 1 root root 4096 2009-11-26 08:30 temp1_crit
> -r--r--r-- 1 root root 4096 2009-11-26 08:11 temp1_input
> -r--r--r-- 1 root root 4096 2009-11-26 08:30 temp1_label
> -r--r--r-- 1 root root 4096 2009-11-26 08:30 temp1_max
> -r--r--r-- 1 root root 4096 2009-11-26 08:30 temp2_crit
> -r--r--r-- 1 root root 4096 2009-11-26 08:26 temp2_input
> -r--r--r-- 1 root root 4096 2009-11-26 08:33 temp2_label
> -r--r--r-- 1 root root 4096 2009-11-26 08:30 temp2_max
> -rw-r--r-- 1 root root 4096 2009-11-26 08:30 uevent
>
> /sys/class/hwmon/hwmon2/:
> total 0
> lrwxrwxrwx 1 root root 0 2009-11-26 08:35 device -> ../../../it87.656
> drwxr-xr-x 2 root root 0 2009-11-26 08:51 power
> lrwxrwxrwx 1 root root 0 2009-11-26 08:51 subsystem ->
> ../../../../../class/hwmon
> -rw-r--r-- 1 root root 4096 2009-11-26 08:51 uevent
>
> $ cat /sys/class/hwmon/hwmon0/name
> acpitz
> $ cat /sys/class/hwmon/hwmon1/name
> atk0110
This is not the question you were asking, but you should NOT be using
drivers asus_atk0110 and it87 together. They access the same piece of
hardware, without synchronization of any form, which is dangerous. If
your kernel is recent enough that it has the asus_atk0110 driver (you
did not tell us the exact kernel version... I guess 2.6.30?) then you
should stop using the it87 driver. Kernel 2.6.31 and later will prevent
you from loading it87 so you better get used to it.
This will indirectly solve your problem, although probably not the way
you would like: the asus_atk0110 driver doesn't offer manual fan speed
control facilities, instead you must select the automatic fan speed
control strategy in the BIOS.
I'm not sure about the ACPI thermal zone, I thought Asus boards did not
have one. Luca, ever seen this before? Is it OK to use both the ACPI
thermal driver and the asus_atk0110 driver at the same time?
--
Jean Delvare
http://khali.linux-fr.org/wishlist.html
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^ permalink raw reply [flat|nested] 7+ messages in thread* Re: [lm-sensors] /sys/class/hwmon/ numbering
2009-11-26 8:14 [lm-sensors] /sys/class/hwmon/ numbering Charles Prévot
2009-11-26 13:24 ` Clemens Ladisch
2009-11-27 8:01 ` Jean Delvare
@ 2009-11-27 8:24 ` Charles Prévot
2009-11-27 8:59 ` Jean Delvare
` (2 subsequent siblings)
5 siblings, 0 replies; 7+ messages in thread
From: Charles Prévot @ 2009-11-27 8:24 UTC (permalink / raw)
To: lm-sensors
[-- Attachment #1.1: Type: text/plain, Size: 5725 bytes --]
On Fri, Nov 27, 2009 at 9:01 AM, Jean Delvare <khali@linux-fr.org> wrote:
> Bonjour Charles,
>
> On Thu, 26 Nov 2009 09:14:45 +0100, Charles Prévot wrote:
> > I have some problems configuring the fancontrol script, because each time
> I
> > shutdown my computer, when I reboot my /sys/class/hwmon/ is different
> > (subfolders hwmon? are numbered differently).
> > What is responsible for this order ?
> > How can I configure it to have i fixed order ?
> >
> > my motherboard is a Asus MN2 SLI DELUXE with AMD CPU
> > below some results:
> >
> > $ls -l /sys/class/hwmon/hwmon?/
> > /sys/class/hwmon/hwmon0/:
> > total 0
> > -r--r--r-- 1 root root 4096 2009-11-26 08:30 name
> > drwxr-xr-x 2 root root 0 2009-11-26 08:51 power
> > lrwxrwxrwx 1 root root 0 2009-11-26 08:51 subsystem ->
> > ../../../../class/hwmon
> > -r--r--r-- 1 root root 4096 2009-11-26 08:51 temp1_crit
> > -r--r--r-- 1 root root 4096 2009-11-26 08:35 temp1_input
> > -rw-r--r-- 1 root root 4096 2009-11-26 08:51 uevent
> >
> > /sys/class/hwmon/hwmon1/:
> > total 0
> > lrwxrwxrwx 1 root root 0 2009-11-26 08:30 device ->
> ../../../ATK0110:00
> > -r--r--r-- 1 root root 4096 2009-11-26 08:11 fan1_input
> > -r--r--r-- 1 root root 4096 2009-11-26 08:30 fan1_label
> > -r--r--r-- 1 root root 4096 2009-11-26 08:30 fan1_max
> > -r--r--r-- 1 root root 4096 2009-11-26 08:11 fan1_min
> > -r--r--r-- 1 root root 4096 2009-11-26 08:11 fan2_input
> > -r--r--r-- 1 root root 4096 2009-11-26 08:30 fan2_label
> > -r--r--r-- 1 root root 4096 2009-11-26 08:30 fan2_max
> > -r--r--r-- 1 root root 4096 2009-11-26 08:11 fan2_min
> > -r--r--r-- 1 root root 4096 2009-11-26 08:11 fan3_input
> > -r--r--r-- 1 root root 4096 2009-11-26 08:30 fan3_label
> > -r--r--r-- 1 root root 4096 2009-11-26 08:30 fan3_max
> > -r--r--r-- 1 root root 4096 2009-11-26 08:11 fan3_min
> > -r--r--r-- 1 root root 4096 2009-11-26 08:11 in0_input
> > -r--r--r-- 1 root root 4096 2009-11-26 08:27 in0_label
> > -r--r--r-- 1 root root 4096 2009-11-26 08:11 in0_max
> > -r--r--r-- 1 root root 4096 2009-11-26 08:11 in0_min
> > -r--r--r-- 1 root root 4096 2009-11-26 08:11 in1_input
> > -r--r--r-- 1 root root 4096 2009-11-26 08:27 in1_label
> > -r--r--r-- 1 root root 4096 2009-11-26 08:11 in1_max
> > -r--r--r-- 1 root root 4096 2009-11-26 08:11 in1_min
> > -r--r--r-- 1 root root 4096 2009-11-26 08:11 in2_input
> > -r--r--r-- 1 root root 4096 2009-11-26 08:30 in2_label
> > -r--r--r-- 1 root root 4096 2009-11-26 08:11 in2_max
> > -r--r--r-- 1 root root 4096 2009-11-26 08:11 in2_min
> > -r--r--r-- 1 root root 4096 2009-11-26 08:11 in3_input
> > -r--r--r-- 1 root root 4096 2009-11-26 08:30 in3_label
> > -r--r--r-- 1 root root 4096 2009-11-26 08:11 in3_max
> > -r--r--r-- 1 root root 4096 2009-11-26 08:11 in3_min
> > -r--r--r-- 1 root root 4096 2009-11-26 08:30 name
> > drwxr-xr-x 2 root root 0 2009-11-26 08:30 power
> > lrwxrwxrwx 1 root root 0 2009-11-26 08:30 subsystem ->
> > ../../../../../../../class/hwmon
> > -r--r--r-- 1 root root 4096 2009-11-26 08:30 temp1_crit
> > -r--r--r-- 1 root root 4096 2009-11-26 08:11 temp1_input
> > -r--r--r-- 1 root root 4096 2009-11-26 08:30 temp1_label
> > -r--r--r-- 1 root root 4096 2009-11-26 08:30 temp1_max
> > -r--r--r-- 1 root root 4096 2009-11-26 08:30 temp2_crit
> > -r--r--r-- 1 root root 4096 2009-11-26 08:26 temp2_input
> > -r--r--r-- 1 root root 4096 2009-11-26 08:33 temp2_label
> > -r--r--r-- 1 root root 4096 2009-11-26 08:30 temp2_max
> > -rw-r--r-- 1 root root 4096 2009-11-26 08:30 uevent
> >
> > /sys/class/hwmon/hwmon2/:
> > total 0
> > lrwxrwxrwx 1 root root 0 2009-11-26 08:35 device -> ../../../it87.656
> > drwxr-xr-x 2 root root 0 2009-11-26 08:51 power
> > lrwxrwxrwx 1 root root 0 2009-11-26 08:51 subsystem ->
> > ../../../../../class/hwmon
> > -rw-r--r-- 1 root root 4096 2009-11-26 08:51 uevent
> >
> > $ cat /sys/class/hwmon/hwmon0/name
> > acpitz
> > $ cat /sys/class/hwmon/hwmon1/name
> > atk0110
>
> This is not the question you were asking, but you should NOT be using
> drivers asus_atk0110 and it87 together. They access the same piece of
> hardware, without synchronization of any form, which is dangerous. If
> your kernel is recent enough that it has the asus_atk0110 driver (you
> did not tell us the exact kernel version... I guess 2.6.30?) then you
> should stop using the it87 driver. Kernel 2.6.31 and later will prevent
> you from loading it87 so you better get used to it.
>
Ok, if you say so... I was using it87 because sensors-detect told me to. I'm
using the latest kernel version proposed by ubuntu karmic (should be
2.6.31-15 but I'm not in front of this computer right now). I will
investigate this when I get back home.
Is asus_atk0110 supposed to managed the "Cool'n Quiet" feature ?
>
> This will indirectly solve your problem, although probably not the way
> you would like: the asus_atk0110 driver doesn't offer manual fan speed
> control facilities, instead you must select the automatic fan speed
> control strategy in the BIOS.
>
I think the strategy is ok in the bios settings (as far as I recall it was
working on windows), but I will look at it too. I don't want a manual fan
speed control, I was using the fancontrol script to slow them depending on
the temperatures, if the bios can do it automatically it's ok for me, but
I'm not sure it's the case...
>
> I'm not sure about the ACPI thermal zone, I thought Asus boards did not
> have one. Luca, ever seen this before? Is it OK to use both the ACPI
> thermal driver and the asus_atk0110 driver at the same time?
>
> --
> Jean Delvare
> http://khali.linux-fr.org/wishlist.html
>
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^ permalink raw reply [flat|nested] 7+ messages in thread* Re: [lm-sensors] /sys/class/hwmon/ numbering
2009-11-26 8:14 [lm-sensors] /sys/class/hwmon/ numbering Charles Prévot
` (2 preceding siblings ...)
2009-11-27 8:24 ` Charles Prévot
@ 2009-11-27 8:59 ` Jean Delvare
2009-11-27 13:59 ` Luca Tettamanti
2009-11-27 22:32 ` Charles Prévot
5 siblings, 0 replies; 7+ messages in thread
From: Jean Delvare @ 2009-11-27 8:59 UTC (permalink / raw)
To: lm-sensors
On Fri, 27 Nov 2009 09:24:56 +0100, Charles Prévot wrote:
> Is asus_atk0110 supposed to managed the "Cool'n Quiet" feature ?
No, AFAIK Cool'n Quiet is a CPU-related feature handled by the
powernow-k8 driver. asus_atk0110 is only exporting the hardware
monitoring values implemented by Asus in their BIOS. At this time
asus_atk0110 is a read-only driver, it doesn't make any change to your
system.
--
Jean Delvare
http://khali.linux-fr.org/wishlist.html
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^ permalink raw reply [flat|nested] 7+ messages in thread* Re: [lm-sensors] /sys/class/hwmon/ numbering
2009-11-26 8:14 [lm-sensors] /sys/class/hwmon/ numbering Charles Prévot
` (3 preceding siblings ...)
2009-11-27 8:59 ` Jean Delvare
@ 2009-11-27 13:59 ` Luca Tettamanti
2009-11-27 22:32 ` Charles Prévot
5 siblings, 0 replies; 7+ messages in thread
From: Luca Tettamanti @ 2009-11-27 13:59 UTC (permalink / raw)
To: lm-sensors
On Fri, Nov 27, 2009 at 9:01 AM, Jean Delvare <khali@linux-fr.org> wrote:
> Bonjour Charles,
> On Thu, 26 Nov 2009 09:14:45 +0100, Charles Prévot wrote:
>> my motherboard is a Asus MN2 SLI DELUXE with AMD CPU
>> below some results:
[...]
> This will indirectly solve your problem, although probably not the way
> you would like: the asus_atk0110 driver doesn't offer manual fan speed
> control facilities, instead you must select the automatic fan speed
> control strategy in the BIOS.
>
> I'm not sure about the ACPI thermal zone, I thought Asus boards did not
> have one. Luca, ever seen this before? Is it OK to use both the ACPI
> thermal driver and the asus_atk0110 driver at the same time?
Yes. I already have the DSDT of that board; internally TZ and ATK both
use the same methods but the execution of the ACPI interpreter is
serialized so there's no chance of conflict.
On this particular board the it87 driver would interfere with TZ,
regardless of whether asus_atk0110 is loaded or not: better not load
it.
Charles, the BIOS supports Q-FAN; in the DSDT I don't see the
profiles, but a "Q-Fan Ratio". Check the manual (and the BIOS itself).
Luca
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^ permalink raw reply [flat|nested] 7+ messages in thread* Re: [lm-sensors] /sys/class/hwmon/ numbering
2009-11-26 8:14 [lm-sensors] /sys/class/hwmon/ numbering Charles Prévot
` (4 preceding siblings ...)
2009-11-27 13:59 ` Luca Tettamanti
@ 2009-11-27 22:32 ` Charles Prévot
5 siblings, 0 replies; 7+ messages in thread
From: Charles Prévot @ 2009-11-27 22:32 UTC (permalink / raw)
To: lm-sensors
[-- Attachment #1.1: Type: text/plain, Size: 1586 bytes --]
On Fri, Nov 27, 2009 at 2:59 PM, Luca Tettamanti <kronos.it@gmail.com>wrote:
> On Fri, Nov 27, 2009 at 9:01 AM, Jean Delvare <khali@linux-fr.org> wrote:
> > Bonjour Charles,
> > On Thu, 26 Nov 2009 09:14:45 +0100, Charles Prévot wrote:
> >> my motherboard is a Asus MN2 SLI DELUXE with AMD CPU
> >> below some results:
> [...]
> > This will indirectly solve your problem, although probably not the way
> > you would like: the asus_atk0110 driver doesn't offer manual fan speed
> > control facilities, instead you must select the automatic fan speed
> > control strategy in the BIOS.
> >
> > I'm not sure about the ACPI thermal zone, I thought Asus boards did not
> > have one. Luca, ever seen this before? Is it OK to use both the ACPI
> > thermal driver and the asus_atk0110 driver at the same time?
>
> Yes. I already have the DSDT of that board; internally TZ and ATK both
> use the same methods but the execution of the ACPI interpreter is
> serialized so there's no chance of conflict.
> On this particular board the it87 driver would interfere with TZ,
> regardless of whether asus_atk0110 is loaded or not: better not load
> it.
> Charles, the BIOS supports Q-FAN; in the DSDT I don't see the
> profiles, but a "Q-Fan Ratio". Check the manual (and the BIOS itself).
>
Exact, you were right. I don't know how I missed this one and then try to
use fancontrol...
Anyway, it solved my problems, and I learned a few things thanks to you all.
So thank you very much for your help Clemens, Jean and Luca.
(btw I disabled the it87 module)
>
> Luca
>
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^ permalink raw reply [flat|nested] 7+ messages in thread