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    SubjectRe: [PATCH] gpiolib: Allow user-selection
    Date
    On Wednesday 02 July 2008, Andrew Morton wrote:
    > On Wed, 2 Jul 2008 23:46:53 +0200
    > Michael Buesch <mb@bu3sch.de> wrote:
    >
    > > This patch adds functionality to the gpio-lib subsystem to
    > > make it possible to enable the gpio-lib code even if the
    > > architecture code didn't request to get it built in.
    >
    > drivers/gpio/gpiolib.c: In function 'gpio_export':
    > drivers/gpio/gpiolib.c:432: error: 'struct class' has no member named 'devices'
    > drivers/gpio/gpiolib.c:456: error: implicit declaration of function 'device_create'
    > drivers/gpio/gpiolib.c:457: warning: assignment makes pointer from integer without a cast
    > drivers/gpio/gpiolib.c: In function 'gpio_unexport':
    > drivers/gpio/gpiolib.c:509: warning: passing argument 2 of 'class_find_device' from incompatible pointer type
    > drivers/gpio/gpiolib.c:509: error: too few arguments to function 'class_find_device'
    > drivers/gpio/gpiolib.c: In function 'gpiochip_export':
    > drivers/gpio/gpiolib.c:536: error: 'struct class' has no member named 'devices'
    > drivers/gpio/gpiolib.c:542: warning: assignment makes pointer from integer without a cast
    > drivers/gpio/gpiolib.c: In function 'gpiochip_unexport':
    > drivers/gpio/gpiolib.c:575: warning: passing argument 2 of 'class_find_device' from incompatible pointer type
    > drivers/gpio/gpiolib.c:575: error: too few arguments to function 'class_find_device'
    >
    > I assume this patch was prepared against some ancient out-of-date
    > kernel such as current Linus mainline.

    May be, but shuffling headers around would not have caused
    that type of breakage.

    I'm thinking some driver model changes broke the gpio sysfs
    interface code, and this happens to show up right now because
    that code wasn't previously getting built.

    Grumph. I can easily switch the device_create() over to
    use device_create_drvdata() -- didn't I already send in
    a patch like that? -- but the other stuff is completely
    backwards-incompatible.

    - Dave


    >
    > Guys, we have a new development tree now.
    >




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