include/uapi/linux/gpio.h

   1 /*
   2  * <linux/gpio.h> - userspace ABI for the GPIO character devices
   3  *
   4  * Copyright (C) 2015 Linus Walleij
   5  *
   6  * This program is free software; you can redistribute it and/or modify it
   7  * under the terms of the GNU General Public License version 2 as published by
   8  * the Free Software Foundation.
   9  */
  10 #ifndef _UAPI_GPIO_H_
  11 #define _UAPI_GPIO_H_
  12
  13 #include <linux/ioctl.h>
  14 #include <linux/types.h>
  15
  16 /**
  17  * struct gpiochip_info - Information about a certain GPIO chip
  18  * @name: the name of this GPIO chip
  19  * @label: a functional name for this GPIO chip
  20  * @lines: number of GPIO lines on this chip
  21  */
  22 struct gpiochip_info {
  23         char name[32];
  24         char label[32];
  25         __u32 lines;
  26 };
  27
  28 #define GPIO_GET_CHIPINFO_IOCTL _IOR('o', 0x01, struct gpiochip_info)
  29
  30 #endif /* _UAPI_GPIO_H_ */