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| author | Jean Delvare <khali@linux-fr.org> | 2010-05-21 18:40:56 +0200 |
|---|---|---|
| committer | Jean Delvare <khali@linux-fr.org> | 2010-05-21 18:40:56 +0200 |
| commit | c5aa69285c573e42042530be86b7af6f5fe9e240 (patch) | |
| tree | 9cf9d795b9471d78bba341632d45d2da82540948 /drivers/i2c | |
| parent | e624dbd32446f40caad05284bf6cb8a5337d2048 (diff) | |
| download | linux-c5aa69285c573e42042530be86b7af6f5fe9e240.tar.gz linux-c5aa69285c573e42042530be86b7af6f5fe9e240.tar.bz2 linux-c5aa69285c573e42042530be86b7af6f5fe9e240.zip | |
i2c-stub: Expose the default functionality flags
It is easier to adjust the flags when you know their default value.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Cc: Mark M. Hoffman <mhoffman@lightlink.com>
Diffstat (limited to 'drivers/i2c')
| -rw-r--r-- | drivers/i2c/busses/i2c-stub.c | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/drivers/i2c/busses/i2c-stub.c b/drivers/i2c/busses/i2c-stub.c index 0c770eabe85e..b1b3447942c9 100644 --- a/drivers/i2c/busses/i2c-stub.c +++ b/drivers/i2c/busses/i2c-stub.c @@ -29,13 +29,16 @@ #include <linux/i2c.h> #define MAX_CHIPS 10 +#define STUB_FUNC (I2C_FUNC_SMBUS_QUICK | I2C_FUNC_SMBUS_BYTE | \ + I2C_FUNC_SMBUS_BYTE_DATA | I2C_FUNC_SMBUS_WORD_DATA | \ + I2C_FUNC_SMBUS_I2C_BLOCK) static unsigned short chip_addr[MAX_CHIPS]; module_param_array(chip_addr, ushort, NULL, S_IRUGO); MODULE_PARM_DESC(chip_addr, "Chip addresses (up to 10, between 0x03 and 0x77)"); -static unsigned long functionality = ~0UL; +static unsigned long functionality = STUB_FUNC; module_param(functionality, ulong, S_IRUGO | S_IWUSR); MODULE_PARM_DESC(functionality, "Override functionality bitfield"); @@ -156,9 +159,7 @@ static s32 stub_xfer(struct i2c_adapter * adap, u16 addr, unsigned short flags, static u32 stub_func(struct i2c_adapter *adapter) { - return (I2C_FUNC_SMBUS_QUICK | I2C_FUNC_SMBUS_BYTE | - I2C_FUNC_SMBUS_BYTE_DATA | I2C_FUNC_SMBUS_WORD_DATA | - I2C_FUNC_SMBUS_I2C_BLOCK) & functionality; + return STUB_FUNC & functionality; } static const struct i2c_algorithm smbus_algorithm = { |