diff options
| -rw-r--r-- | drivers/hid/hid-sensor-hub.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/drivers/hid/hid-sensor-hub.c b/drivers/hid/hid-sensor-hub.c index a76eb2a0a987..51d51d7b2dad 100644 --- a/drivers/hid/hid-sensor-hub.c +++ b/drivers/hid/hid-sensor-hub.c @@ -593,6 +593,20 @@ static __u8 *sensor_hub_report_fixup(struct hid_device *hdev, __u8 *rdesc, } } + /* Checks if the report descriptor of Thinkpad Helix 2 has a logical + * minimum for magnetic flux axis greater than the maximum */ + if (hdev->product == USB_DEVICE_ID_TEXAS_INSTRUMENTS_LENOVO_YOGA && + *rsize == 2558 && rdesc[913] == 0x17 && rdesc[914] == 0x40 && + rdesc[915] == 0x81 && rdesc[916] == 0x08 && + rdesc[917] == 0x00 && rdesc[918] == 0x27 && + rdesc[921] == 0x07 && rdesc[922] == 0x00) { + /* Sets negative logical minimum for mag x, y and z */ + rdesc[914] = rdesc[935] = rdesc[956] = 0xc0; + rdesc[915] = rdesc[936] = rdesc[957] = 0x7e; + rdesc[916] = rdesc[937] = rdesc[958] = 0xf7; + rdesc[917] = rdesc[938] = rdesc[959] = 0xff; + } + return rdesc; } |