diff options
| -rw-r--r-- | drivers/i2c/chips/eeprom.c | 14 |
1 files changed, 9 insertions, 5 deletions
diff --git a/drivers/i2c/chips/eeprom.c b/drivers/i2c/chips/eeprom.c index 471013bb034d..5ad36ab23781 100644 --- a/drivers/i2c/chips/eeprom.c +++ b/drivers/i2c/chips/eeprom.c @@ -202,12 +202,16 @@ static int eeprom_detect(struct i2c_adapter *adapter, int address, int kind) goto exit_kfree; /* Detect the Vaio nature of EEPROMs. - We use the "PCG-" prefix as the signature. */ + We use the "PCG-" or "VGN-" prefix as the signature. */ if (address == 0x57) { - if (i2c_smbus_read_byte_data(new_client, 0x80) == 'P' - && i2c_smbus_read_byte(new_client) == 'C' - && i2c_smbus_read_byte(new_client) == 'G' - && i2c_smbus_read_byte(new_client) == '-') { + char name[4]; + + name[0] = i2c_smbus_read_byte_data(new_client, 0x80); + name[1] = i2c_smbus_read_byte(new_client); + name[2] = i2c_smbus_read_byte(new_client); + name[3] = i2c_smbus_read_byte(new_client); + + if (!memcmp(name, "PCG-", 4) || !memcmp(name, "VGN-", 4)) { dev_info(&new_client->dev, "Vaio EEPROM detected, " "enabling privacy protection\n"); data->nature = VAIO; |