diff options
| -rw-r--r-- | drivers/hid/hid-rmi.c | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/drivers/hid/hid-rmi.c b/drivers/hid/hid-rmi.c index eda7ef41c291..05e4928c06f1 100644 --- a/drivers/hid/hid-rmi.c +++ b/drivers/hid/hid-rmi.c @@ -641,10 +641,15 @@ static int rmi_populate_f11(struct hid_device *hdev) } } - /* retrieve the ctrl registers */ - ret = rmi_read_block(hdev, data->f11.control_base_addr, buf, 20); + /* + * retrieve the ctrl registers + * the ctrl register has a size of 20 but a fw bug split it into 16 + 4, + * and there is no way to know if the first 20 bytes are here or not. + * We use only the first 10 bytes, so get only them. + */ + ret = rmi_read_block(hdev, data->f11.control_base_addr, buf, 10); if (ret) { - hid_err(hdev, "can not read ctrl block of size 20: %d.\n", ret); + hid_err(hdev, "can not read ctrl block of size 10: %d.\n", ret); return ret; } |