diff options
Diffstat (limited to 'include/asm-cris/etraxi2c.h')
-rw-r--r-- | include/asm-cris/etraxi2c.h | 36 |
1 files changed, 0 insertions, 36 deletions
diff --git a/include/asm-cris/etraxi2c.h b/include/asm-cris/etraxi2c.h deleted file mode 100644 index e369a76..0000000 --- a/include/asm-cris/etraxi2c.h +++ /dev/null @@ -1,36 +0,0 @@ -/* $Id: etraxi2c.h,v 1.1 2001/01/18 15:49:57 bjornw Exp $ */ - -#ifndef _LINUX_ETRAXI2C_H -#define _LINUX_ETRAXI2C_H - -/* etraxi2c _IOC_TYPE, bits 8 to 15 in ioctl cmd */ - -#define ETRAXI2C_IOCTYPE 44 - -/* supported ioctl _IOC_NR's */ - -/* in write operations, the argument contains both i2c - * slave, register and value. - */ - -#define I2C_WRITEARG(slave, reg, value) (((slave) << 16) | ((reg) << 8) | (value)) -#define I2C_READARG(slave, reg) (((slave) << 16) | ((reg) << 8)) - -#define I2C_ARGSLAVE(arg) ((arg) >> 16) -#define I2C_ARGREG(arg) (((arg) >> 8) & 0xff) -#define I2C_ARGVALUE(arg) ((arg) & 0xff) - -#define I2C_WRITEREG 0x1 /* write to an i2c register */ -#define I2C_READREG 0x2 /* read from an i2c register */ - -/* -EXAMPLE usage: - - i2c_arg = I2C_WRITEARG(STA013_WRITE_ADDR, reg, val); - ioctl(fd, _IO(ETRAXI2C_IOCTYPE, I2C_WRITEREG), i2c_arg); - - i2c_arg = I2C_READARG(STA013_READ_ADDR, reg); - val = ioctl(fd, _IO(ETRAXI2C_IOCTYPE, I2C_READREG), i2c_arg); - -*/ -#endif |