LXR linux/include/linux/i2c/pca953x.h

   1#ifndef _LINUX_PCA953X_H
   2#define _LINUX_PCA953X_H
   3
   4#include <linux/types.h>
   5#include <linux/i2c.h>
   6
   7/* platform data for the PCA9539 16-bit I/O expander driver */
   8
   9struct pca953x_platform_data {
  10        /* number of the first GPIO */
  11        unsigned        gpio_base;
  12
  13        /* initial polarity inversion setting */
  14        u32             invert;
  15
  16        /* interrupt base */
  17        int             irq_base;
  18
  19        void            *context;       /* param to setup/teardown */
  20
  21        int             (*setup)(struct i2c_client *client,
  22                                unsigned gpio, unsigned ngpio,
  23                                void *context);
  24        int             (*teardown)(struct i2c_client *client,
  25                                unsigned gpio, unsigned ngpio,
  26                                void *context);
  27        const char      *const *names;
  28};
  29
  30#endif /* _LINUX_PCA953X_H */
  31