| /* |
| * HID over I2C protocol implementation |
| * |
| * Copyright (c) 2012 Benjamin Tissoires <benjamin.tissoires@gmail.com> |
| * Copyright (c) 2012 Ecole Nationale de l'Aviation Civile, France |
| * |
| * This file is subject to the terms and conditions of the GNU General Public |
| * License. See the file COPYING in the main directory of this archive for |
| * more details. |
| */ |
| |
| #ifndef __LINUX_I2C_HID_H |
| #define __LINUX_I2C_HID_H |
| |
| #include <linux/regulator/consumer.h> |
| #include <linux/types.h> |
| |
| /** |
| * struct i2chid_platform_data - used by hid over i2c implementation. |
| * @hid_descriptor_address: i2c register where the HID descriptor is stored. |
| * @supplies: regulators for powering on the device. |
| * @post_power_delay_ms: delay after powering on before device is usable. |
| * |
| * Note that it is the responsibility of the platform driver (or the acpi 5.0 |
| * driver, or the flattened device tree) to setup the irq related to the gpio in |
| * the struct i2c_board_info. |
| * The platform driver should also setup the gpio according to the device: |
| * |
| * A typical example is the following: |
| * irq = gpio_to_irq(intr_gpio); |
| * hkdk4412_i2c_devs5[0].irq = irq; // store the irq in i2c_board_info |
| * gpio_request(intr_gpio, "elan-irq"); |
| * s3c_gpio_setpull(intr_gpio, S3C_GPIO_PULL_UP); |
| */ |
| struct i2c_hid_platform_data { |
| u16 hid_descriptor_address; |
| struct regulator_bulk_data supplies[2]; |
| int post_power_delay_ms; |
| }; |
| |
| #endif /* __LINUX_I2C_HID_H */ |
