TWxSoftware/twx-linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

gpio: store reflect the label to userspace

Browse Source 
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>
This commit is contained in:
Linus Walleij
2016-02-12 14:48:23 +01:00
parent 0a7439ef75
commit df4878e969
5 changed files with 22 additions and 3 deletions
Download Patch File Download Diff File Expand all files Collapse all files
include/linux/gpio/driver.h
+2 -1
View File
@@ -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