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    SubjectRe: [PATCH] usb: cp210x: Added support for GPIO (CP2103/4/5)
    On Fri, 04 May 2012 18:26:58 +0200
    Alexander Stein <a.stein@systec-electronic.com> wrote:

    > Am Montag, 30. April 2012, 15:27:17 schrieb Preston Fick:
    > > This fix contains several changes that allow toggling of GPIO on CP210x
    > > devices that support it. Changes include:
    > > * Added in part number support, necessary to see if the connected device
    > > supports the GPIO functionality
    > > * Added two IOCTLs and ioctl function to allow GET/SET of GPIO
    > > * Added in new #defines for partnum support, new USB requests
    > > * Changed "Config request types" section to contain more correct definitions
    > > for request recipient
    > >
    > > Signed-off-by: Preston Fick <preston.fick@silabs.com>
    >
    > Do you actually need to create new ioctls? You also could support gpiolib and
    > create a gpiochip for that.

    See my follow up posting, and comment on that proposal.


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