gpio: store reflect the label to userspace

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The gpio_chip label is useful for userspace to understand what
kind of GPIO chip it is dealing with. Let's store a copy of this
label in the gpio_device, add it to the struct passed to userspace
for GPIO_GET_CHIPINFO_IOCTL and modify lsgpio to show it.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

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Linus Walleij 2016-02-12 14:48:23 +01:00

parent 0a7439ef75

commit df4878e969

5 changed files with 22 additions and 3 deletions

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include/uapi/linux/gpio.h

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