diff options
Diffstat (limited to 'include/linux/i2c/i2c-hid.h')
-rw-r--r-- | include/linux/i2c/i2c-hid.h | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/include/linux/i2c/i2c-hid.h b/include/linux/i2c/i2c-hid.h new file mode 100644 index 000000000000..60e411d764d4 --- /dev/null +++ b/include/linux/i2c/i2c-hid.h | |||
@@ -0,0 +1,35 @@ | |||
1 | /* | ||
2 | * HID over I2C protocol implementation | ||
3 | * | ||
4 | * Copyright (c) 2012 Benjamin Tissoires <benjamin.tissoires@gmail.com> | ||
5 | * Copyright (c) 2012 Ecole Nationale de l'Aviation Civile, France | ||
6 | * | ||
7 | * This file is subject to the terms and conditions of the GNU General Public | ||
8 | * License. See the file COPYING in the main directory of this archive for | ||
9 | * more details. | ||
10 | */ | ||
11 | |||
12 | #ifndef __LINUX_I2C_HID_H | ||
13 | #define __LINUX_I2C_HID_H | ||
14 | |||
15 | #include <linux/types.h> | ||
16 | |||
17 | /** | ||
18 | * struct i2chid_platform_data - used by hid over i2c implementation. | ||
19 | * @hid_descriptor_address: i2c register where the HID descriptor is stored. | ||
20 | * | ||
21 | * Note that it is the responsibility of the platform driver (or the acpi 5.0 | ||
22 | * driver) to setup the irq related to the gpio in the struct i2c_board_info. | ||
23 | * The platform driver should also setup the gpio according to the device: | ||
24 | * | ||
25 | * A typical example is the following: | ||
26 | * irq = gpio_to_irq(intr_gpio); | ||
27 | * hkdk4412_i2c_devs5[0].irq = irq; // store the irq in i2c_board_info | ||
28 | * gpio_request(intr_gpio, "elan-irq"); | ||
29 | * s3c_gpio_setpull(intr_gpio, S3C_GPIO_PULL_UP); | ||
30 | */ | ||
31 | struct i2c_hid_platform_data { | ||
32 | u16 hid_descriptor_address; | ||
33 | }; | ||
34 | |||
35 | #endif /* __LINUX_I2C_HID_H */ | ||