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25 results

it87

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  • it87 7.09 KiB
    Kernel driver it87
    ==================
    
    Supported chips:
      * IT8705F
        Prefix: 'it87'
        Addresses scanned: from Super I/O config space (8 I/O ports)
        Datasheet: Publicly available at the ITE website
                   http://www.ite.com.tw/product_info/file/pc/IT8705F_V.0.4.1.pdf
      * IT8712F
        Prefix: 'it8712'
        Addresses scanned: from Super I/O config space (8 I/O ports)
        Datasheet: Publicly available at the ITE website
                   http://www.ite.com.tw/product_info/file/pc/IT8712F_V0.9.1.pdf
                   http://www.ite.com.tw/product_info/file/pc/Errata%20V0.1%20for%20IT8712F%20V0.9.1.pdf
                   http://www.ite.com.tw/product_info/file/pc/IT8712F_V0.9.3.pdf
      * IT8716F/IT8726F
        Prefix: 'it8716'
        Addresses scanned: from Super I/O config space (8 I/O ports)
        Datasheet: Publicly available at the ITE website
                   http://www.ite.com.tw/product_info/file/pc/IT8716F_V0.3.ZIP
                   http://www.ite.com.tw/product_info/file/pc/IT8726F_V0.3.pdf
      * IT8718F
        Prefix: 'it8718'
        Addresses scanned: from Super I/O config space (8 I/O ports)
        Datasheet: Publicly available at the ITE website
                   http://www.ite.com.tw/product_info/file/pc/IT8718F_V0.2.zip
                   http://www.ite.com.tw/product_info/file/pc/IT8718F_V0%203_(for%20C%20version).zip
      * IT8720F
        Prefix: 'it8720'
        Addresses scanned: from Super I/O config space (8 I/O ports)
        Datasheet: Not yet publicly available.
      * SiS950   [clone of IT8705F]
        Prefix: 'it87'
        Addresses scanned: from Super I/O config space (8 I/O ports)
        Datasheet: No longer be available
    
    Authors:
        Christophe Gauthron
        Jean Delvare <khali@linux-fr.org>
    
    
    Module Parameters
    -----------------
    
    * update_vbat: int
    
      0 if vbat should report power on value, 1 if vbat should be updated after
      each read. Default is 0. On some boards the battery voltage is provided
      by either the battery or the onboard power supply. Only the first reading
      at power on will be the actual battery voltage (which the chip does
      automatically). On other boards the battery voltage is always fed to
      the chip so can be read at any time. Excessive reading may decrease
      battery life but no information is given in the datasheet.
    
    * fix_pwm_polarity int
    
      Force PWM polarity to active high (DANGEROUS). Some chips are
      misconfigured by BIOS - PWM values would be inverted. This option tries
      to fix this. Please contact your BIOS manufacturer and ask him for fix.
    
    
    Hardware Interfaces
    -------------------
    
    All the chips suported by this driver are LPC Super-I/O chips, accessed
    through the LPC bus (ISA-like I/O ports). The IT8712F additionally has an
    SMBus interface to the hardware monitoring functions. This driver no
    longer supports this interface though, as it is slower and less reliable
    than the ISA access, and was only available on a small number of