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Commit c5aa6928 authored by Jean Delvare's avatar Jean Delvare
Browse files

i2c-stub: Expose the default functionality flags



It is easier to adjust the flags when you know their default value.

Signed-off-by: default avatarJean Delvare <khali@linux-fr.org>
Cc: Mark M. Hoffman <mhoffman@lightlink.com>
parent e624dbd3
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+5 −4
Original line number Diff line number Diff line
@@ -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 = {