diff options
author | Linus Walleij <linus.walleij@linaro.org> | 2016-02-12 13:48:23 (GMT) |
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committer | Linus Walleij <linus.walleij@linaro.org> | 2016-02-19 08:48:41 (GMT) |
commit | df4878e969ccc047da45d2cd3af5d08031da1593 (patch) | |
tree | 2677387492b60fd5c6a42a317bde0e7e965aa8fa /include | |
parent | 0a7439ef755d46a2e61d460d7a440f7fa65d7182 (diff) | |
download | linux-df4878e969ccc047da45d2cd3af5d08031da1593.tar.xz |
gpio: store reflect the label to userspace
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>
Diffstat (limited to 'include')
-rw-r--r-- | include/linux/gpio/driver.h | 3 | ||||
-rw-r--r-- | include/uapi/linux/gpio.h | 2 |
2 files changed, 4 insertions, 1 deletions
diff --git a/include/linux/gpio/driver.h b/include/linux/gpio/driver.h index ff96d0f..6396076 100644 --- a/include/linux/gpio/driver.h +++ b/include/linux/gpio/driver.h @@ -21,7 +21,8 @@ struct gpio_device; /** * struct gpio_chip - abstract a GPIO controller - * @label: for diagnostics + * @label: a functional name for the GPIO device, such as a part + * number or the name of the SoC IP-block implementing it. * @gpiodev: the internal state holder, opaque struct * @parent: optional parent device providing the GPIOs * @owner: helps prevent removal of modules exporting active GPIOs diff --git a/include/uapi/linux/gpio.h b/include/uapi/linux/gpio.h index 3188a87..3f93e1b 100644 --- a/include/uapi/linux/gpio.h +++ b/include/uapi/linux/gpio.h @@ -16,10 +16,12 @@ /** * struct gpiochip_info - Information about a certain GPIO chip * @name: the name of this GPIO chip + * @label: a functional name for this GPIO chip * @lines: number of GPIO lines on this chip */ struct gpiochip_info { char name[32]; + char label[32]; __u32 lines; }; |