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- /* platform data for the PCA9539 16-bit I/O expander driver */
- struct pca953x_platform_data {
- /* number of the first GPIO */
- unsigned gpio_base;
- /* initial polarity inversion setting */
- uint16_t invert;
- void *context; /* param to setup/teardown */
- int (*setup)(struct i2c_client *client,
- unsigned gpio, unsigned ngpio,
- void *context);
- int (*teardown)(struct i2c_client *client,
- unsigned gpio, unsigned ngpio,
- void *context);
- };
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