| /* |
| i2c-dev.h - i2c-bus driver, char device interface |
| |
| Copyright (C) 1995-97 Simon G. Vogl |
| Copyright (C) 1998-99 Frodo Looijaard <frodol@dds.nl> |
| |
| This program is free software; you can redistribute it and/or modify |
| it under the terms of the GNU General Public License as published by |
| the Free Software Foundation; either version 2 of the License, or |
| (at your option) any later version. |
| |
| This program is distributed in the hope that it will be useful, |
| but WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| GNU General Public License for more details. |
| |
| You should have received a copy of the GNU General Public License |
| along with this program; if not, write to the Free Software |
| Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
| */ |
| |
| #ifndef _LINUX_I2C_DEV_H |
| #define _LINUX_I2C_DEV_H |
| |
| #include <linux/types.h> |
| #include <linux/compiler.h> |
| |
| /* Some IOCTL commands are defined in <linux/i2c.h> */ |
| /* Note: 10-bit addresses are NOT supported! */ |
| |
| /* This is the structure as used in the I2C_SMBUS ioctl call */ |
| struct i2c_smbus_ioctl_data { |
| __u8 read_write; |
| __u8 command; |
| __u32 size; |
| union i2c_smbus_data __user *data; |
| }; |
| |
| /* This is the structure as used in the I2C_RDWR ioctl call */ |
| struct i2c_rdwr_ioctl_data { |
| struct i2c_msg __user *msgs; /* pointers to i2c_msgs */ |
| __u32 nmsgs; /* number of i2c_msgs */ |
| }; |
| |
| #define I2C_RDRW_IOCTL_MAX_MSGS 42 |
| |
| #endif /* _LINUX_I2C_DEV_H */ |