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    SubjectRe: [PATCH v4 0/2] Add driver for Apple gmux device
    Hi Seth,

    On 03/16/2012 03:41 PM, Seth Forshee wrote:
    > Apple laptops with hybrid graphics have a device named gmux that is used
    > for switching between GPUs and backlight control. On many models this is
    > the only reliable method for controlling the backlight.
    >
    > This series adds initial support for the gmux device, along with
    > anciallary support for disabling apple_bl when the gmux device is
    > detected. Initially only backlight control is supported.
    >
    >

    I've done some basic testing on my MBP 5,3 (just setting a few
    brightness levels, nothing fancy), and it all works, so feel free to add
    my basic

    Tested-by: Shea Levy <shea@shealevy.com>

    if you wish. Please let me know if you need testing for future gmux
    features.

    A few questions:
    * I'm using nouveau, and with the gmux I have both gmux_backlight
    and nv_backlight (which never worked) in /sys/class/backlight, is this
    expected?
    * Is there anything I can do to test the sysfs backlight interface
    besides setting the levels?
    * Besides the sysfs backlight interface, are there any other
    userspace-visible changes your driver makes that I should test?

    Cheers,
    Shea Levy



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