From: Jean Delvare Date: Thu, 15 Nov 2007 18:24:03 +0000 (+0100) Subject: i2c/eeprom: Recognize VGN as a valid Sony Vaio name prefix X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=8b925a3dd8a4d7451092cb9aa11da727ba69e0f0;p=linux-beck.git i2c/eeprom: Recognize VGN as a valid Sony Vaio name prefix Recent (i.e. 2005 and later) Sony Vaio laptops have names beginning with VGN rather than PCG. Update the eeprom driver so that it recognizes these. Signed-off-by: Jean Delvare --- diff --git a/drivers/i2c/chips/eeprom.c b/drivers/i2c/chips/eeprom.c index ef8a754db1db..1a7eeebac506 100644 --- a/drivers/i2c/chips/eeprom.c +++ b/drivers/i2c/chips/eeprom.c @@ -204,12 +204,16 @@ 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;