10 Oct, 2007

1 commit


20 Jul, 2007

1 commit

  • Fix a potential race condition when some hardware monitoring platform
    drivers are being unloaded. I believe that the driver data pointer
    shouldn't be cleared before all the sysfs files are removed, otherwise
    a sysfs callback might attempt to dereference a NULL pointer. I'm not
    sure exactly what the driver core protects drivers against, so let's
    play it safe.

    While we're here, clear the driver data pointer when probe fails, so
    as to not leave an invalid pointer behind us.

    Signed-off-by: Jean Delvare
    Signed-off-by: Mark M. Hoffman

    Jean Delvare
     

08 May, 2007

1 commit

  • My understanding of the resource management in the Linux 2.6 device
    driver model is that the devices should declare their resources, and
    then when a driver attaches to a device, it should request the
    resources it will be using, so as to mark them busy. This is how the
    PCI and PNP subsystems work, you can clearly see the two levels of
    resources (declaration and request) in /proc/ioports for these
    devices.

    So I believe that our platform hardware monitoring drivers should
    follow the same logic. At the moment, we only declare the resources
    but we do not request them. This patch adds the I/O region request
    and release calls.

    Signed-off-by: Jean Delvare
    Acked-by: Juerg Haefliger

    Jean Delvare
     

13 Dec, 2006

1 commit

  • This is a new hardware monitoring driver for the National Semiconductor
    PC87427 Super-I/O chip. It only supports fan speed monitoring for now,
    while the chip can do much more.

    Thanks to Amir Habibi at Candelis for setting up a test system, and to
    Michael Kress for testing several iterations of this driver.

    Signed-off-by: Jean Delvare

    Jean Delvare