diff options
Diffstat (limited to 'drivers/misc/eeprom/at24.c')
| -rw-r--r-- | drivers/misc/eeprom/at24.c | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/drivers/misc/eeprom/at24.c b/drivers/misc/eeprom/at24.c index 564a20113377..0621937e7b3a 100644 --- a/drivers/misc/eeprom/at24.c +++ b/drivers/misc/eeprom/at24.c @@ -58,6 +58,10 @@ struct at24_data { int use_smbus; int use_smbus_write; + ssize_t (*read_func)(struct at24_data *, char *, unsigned int, size_t); + ssize_t (*write_func)(struct at24_data *, + const char *, unsigned int, size_t); + /* * Lock protects against activities from other Linux tasks, * but not from changes by other I2C masters. @@ -351,7 +355,7 @@ static int at24_read(void *priv, unsigned int off, void *val, size_t count) while (count) { int status; - status = at24_eeprom_read(at24, buf, off, count); + status = at24->read_func(at24, buf, off, count); if (status < 0) { mutex_unlock(&at24->lock); return status; @@ -383,7 +387,7 @@ static int at24_write(void *priv, unsigned int off, void *val, size_t count) while (count) { int status; - status = at24_eeprom_write(at24, buf, off, count); + status = at24->write_func(at24, buf, off, count); if (status < 0) { mutex_unlock(&at24->lock); return status; @@ -518,6 +522,9 @@ static int at24_probe(struct i2c_client *client, const struct i2c_device_id *id) at24->chip = chip; at24->num_addresses = num_addresses; + at24->read_func = at24_eeprom_read; + at24->write_func = at24_eeprom_write; + writable = !(chip.flags & AT24_FLAG_READONLY); if (writable) { if (!use_smbus || use_smbus_write) { |