cpp-d1064d

[cross.git] / i686-linux-gnu-4.7 / usr / include / linux / i2c-dev.h

diff --git a/i686-linux-gnu-4.7/usr/include/linux/i2c-dev.h b/i686-linux-gnu-4.7/usr/include/linux/i2c-dev.h
new file mode 100644 (file)
index 0000000..46e7a47
--- /dev/null
+++ b/i686-linux-gnu-4.7/usr/include/linux/i2c-dev.h
@@ -0,0 +1,75 @@
+/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
+/*
+    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., 51 Franklin Street, Fifth Floor, Boston,
+    MA 02110-1301 USA.
+*/
+
+#ifndef _LINUX_I2C_DEV_H
+#define _LINUX_I2C_DEV_H
+
+#include <linux/types.h>
+
+
+/* /dev/i2c-X ioctl commands.  The ioctl's parameter is always an
+ * unsigned long, except for:
+ *     - I2C_FUNCS, takes pointer to an unsigned long
+ *     - I2C_RDWR, takes pointer to struct i2c_rdwr_ioctl_data
+ *     - I2C_SMBUS, takes pointer to struct i2c_smbus_ioctl_data
+ */
+#define I2C_RETRIES    0x0701  /* number of times a device address should
+                                  be polled when not acknowledging */
+#define I2C_TIMEOUT    0x0702  /* set timeout in units of 10 ms */
+
+/* NOTE: Slave address is 7 or 10 bits, but 10-bit addresses
+ * are NOT supported! (due to code brokenness)
+ */
+#define I2C_SLAVE      0x0703  /* Use this slave address */
+#define I2C_SLAVE_FORCE        0x0706  /* Use this slave address, even if it
+                                  is already in use by a driver! */
+#define I2C_TENBIT     0x0704  /* 0 for 7 bit addrs, != 0 for 10 bit */
+
+#define I2C_FUNCS      0x0705  /* Get the adapter functionality mask */
+
+#define I2C_RDWR       0x0707  /* Combined R/W transfer (one STOP only) */
+
+#define I2C_PEC                0x0708  /* != 0 to use PEC with SMBus */
+#define I2C_SMBUS      0x0720  /* SMBus transfer */
+
+
+/* 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 *data;
+};
+
+/* This is the structure as used in the I2C_RDWR ioctl call */
+struct i2c_rdwr_ioctl_data {
+       struct i2c_msg *msgs;   /* pointers to i2c_msgs */
+       __u32 nmsgs;                    /* number of i2c_msgs */
+};
+
+#define  I2C_RDWR_IOCTL_MAX_MSGS       42
+/* Originally defined with a typo, keep it for compatibility */
+#define  I2C_RDRW_IOCTL_MAX_MSGS       I2C_RDWR_IOCTL_MAX_MSGS
+
+
+#endif /* _LINUX_I2C_DEV_H */