diff options
Diffstat (limited to 'drivers/hwmon/applesmc.c')
| -rw-r--r-- | drivers/hwmon/applesmc.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/hwmon/applesmc.c b/drivers/hwmon/applesmc.c index dca47a591baf..e30186236588 100644 --- a/drivers/hwmon/applesmc.c +++ b/drivers/hwmon/applesmc.c @@ -590,6 +590,11 @@ static ssize_t applesmc_light_show(struct device *dev, } ret = applesmc_read_key(LIGHT_SENSOR_LEFT_KEY, buffer, data_length); + /* newer macbooks report a single 10-bit bigendian value */ + if (data_length == 10) { + left = be16_to_cpu(*(__be16 *)(buffer + 6)) >> 2; + goto out; + } left = buffer[2]; if (ret) goto out; |