tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1/*
2 * v4l2-i2c-drv.h - contains I2C handling code that's identical for
3 * all V4L2 I2C drivers. Use this header if the
4 * I2C driver is only used by drivers converted
5 * to the bus-based I2C API.
6 *
7 * Copyright (C) 2007 Hans Verkuil <hverkuil@xs4all.nl>
8 *
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
13 *
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
18 *
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
22 */
23
24#ifndef __V4L2_I2C_DRV_H__
25#define __V4L2_I2C_DRV_H__
26
27#include <media/v4l2-common.h>
28
29struct v4l2_i2c_driver_data {
30 const char * const name;
31 int driverid;
32 int (*command)(struct i2c_client *client, unsigned int cmd, void *arg);
33 int (*probe)(struct i2c_client *client);
34 int (*remove)(struct i2c_client *client);
35 int (*suspend)(struct i2c_client *client, pm_message_t state);
36 int (*resume)(struct i2c_client *client);
37 int (*legacy_probe)(struct i2c_adapter *adapter);
38 int legacy_class;
39};
40
41static struct v4l2_i2c_driver_data v4l2_i2c_data;
42static struct i2c_driver v4l2_i2c_driver;
43
44
45/* Bus-based I2C implementation for kernels >= 2.6.22 */
46
47static int __init v4l2_i2c_drv_init(void)
48{
49 v4l2_i2c_driver.driver.name = v4l2_i2c_data.name;
50 v4l2_i2c_driver.id = v4l2_i2c_data.driverid;
51 v4l2_i2c_driver.command = v4l2_i2c_data.command;
52 v4l2_i2c_driver.probe = v4l2_i2c_data.probe;
53 v4l2_i2c_driver.remove = v4l2_i2c_data.remove;
54 v4l2_i2c_driver.suspend = v4l2_i2c_data.suspend;
55 v4l2_i2c_driver.resume = v4l2_i2c_data.resume;
56 return i2c_add_driver(&v4l2_i2c_driver);
57}
58
59
60static void __exit v4l2_i2c_drv_cleanup(void)
61{
62 i2c_del_driver(&v4l2_i2c_driver);
63}
64
65module_init(v4l2_i2c_drv_init);
66module_exit(v4l2_i2c_drv_cleanup);
67
68#endif /* __V4L2_I2C_DRV_H__ */