Re: info about driver for chip EMC1402

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



Jean
I know that I have a EMC1402 chip because this is what the "sensors-detect" command report:
Driver `to-be-written':
  * Bus `SMBus PIIX4 adapter at 0b00'
    Busdriver `i2c_piix4', I2C address 0x4c
    Chip `SMSC EMC1402' (confidence: 6)
Driver `adm1021':
  * Bus `SMBus PIIX4 adapter at 0b00'
    Busdriver `i2c_piix4', I2C address 0x4e
    Chip `Maxim MAX1617' (confidence: 3)
Driver `k10temp' (autoloaded):
  * Chip `AMD Family 11h thermal sensors' (confidence: 9)
Note: there is no driver for SMSC EMC1402 yet.


I searched around but I haven't found a specific vendor's driver for my laptop (HP 6735s) and ACPI has a strange behavior: rarelly, when I turn on my laptop, the fan works, but 90% it doesn't start except when temp is around 85 celsius. I have already tried all boot options (acpi=force, acpi=off, acpi=osi_Linux, acpi_enforce_resources=lax) but without succes. 



Il Martedì 27 Maggio 2014 8:53, Jean Delvare <jdelvare@xxxxxxx> ha scritto:
 


Hi Guenter, Kenny,

On Mon, 26 May 2014 17:15:54 -0700, Guenter Roeck wrote:
> On 05/26/2014 02:23 PM, Kenny Lake wrote:
> > I have serious temp problem with my laptop, it has a EMC1402 chip and I would like to know if is there any new driver  that I can try to use.
> > Thanks
> 
> A patch to add suport for this chip is pending for integration into the 3.16 kernel.
> It is available in the linux-next repository. Can you use that ?

On laptops it is almost never possible to access monitoring chips
directly, one has to go through ACPI or a vendor-specific layer. So
Kenny should prepare himself to the idea that the emc1403 driver in
linux-next will most likely not work. But it's certainly worth a try
anyway.

Kenny, how do you know that your laptop has an EMC1402 chip? Doesn't
the ACPI thermal driver work for you? Did you try the vendor-specific
driver for your laptop? Some of them (asus-wmi, compal-laptop,
eeepc-laptop and thinkpad_acpi) provide temperature readings.

-- 
Jean Delvare
SUSE L3 Support
_______________________________________________
lm-sensors mailing list
lm-sensors@xxxxxxxxxxxxxx
http://lists.lm-sensors.org/mailman/listinfo/lm-sensors





[Index of Archives]     [Linux Kernel]     [Linux Hardware Monitoring]     [Linux USB Devel]     [Linux Audio Users]     [Linux Kernel]     [Linux SCSI]     [Yosemite Backpacking]

  Powered by Linux