diff options
Diffstat (limited to 'include/linux/i2c-dev.h')
| -rw-r--r-- | include/linux/i2c-dev.h | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/include/linux/i2c-dev.h b/include/linux/i2c-dev.h new file mode 100644 index 000000000000..d228230ffe5d --- /dev/null +++ b/include/linux/i2c-dev.h @@ -0,0 +1,48 @@ +/* + 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. +*/ + +/* $Id: i2c-dev.h,v 1.13 2003/01/21 08:08:16 kmalkki Exp $ */ + +#ifndef _LINUX_I2C_DEV_H +#define _LINUX_I2C_DEV_H + +#include <linux/types.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 */ |