diff options
| author | Linus Walleij <linus.walleij@linaro.org> | 2016-02-12 14:48:23 +0100 |
|---|---|---|
| committer | Linus Walleij <linus.walleij@linaro.org> | 2016-02-19 09:48:41 +0100 |
| commit | df4878e969ccc047da45d2cd3af5d08031da1593 (patch) | |
| tree | 2677387492b60fd5c6a42a317bde0e7e965aa8fa /drivers/gpio/gpiolib.h | |
| parent | 0a7439ef755d46a2e61d460d7a440f7fa65d7182 (diff) | |
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 'drivers/gpio/gpiolib.h')
| -rw-r--r-- | drivers/gpio/gpiolib.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/gpio/gpiolib.h b/drivers/gpio/gpiolib.h index ddbe409ad48f..e30e5fdb1214 100644 --- a/drivers/gpio/gpiolib.h +++ b/drivers/gpio/gpiolib.h @@ -37,6 +37,8 @@ struct acpi_device; * of the @descs array. * @base: GPIO base in the DEPRECATED global Linux GPIO numberspace, assigned * at device creation time. + * @label: a descriptive name for the GPIO device, such as the part number + * or name of the IP component in a System on Chip. * @data: per-instance data assigned by the driver * @list: links gpio_device:s together for traversal * @@ -55,6 +57,7 @@ struct gpio_device { struct gpio_desc *descs; int base; u16 ngpio; + char *label; void *data; struct list_head list; |