diff options
| author | Benn Pörscke <benn.porscke@stericsson.com> | 2011-12-16 15:04:55 +0100 |
|---|---|---|
| committer | Benn Pörscke <benn.porscke@stericsson.com> | 2011-12-16 15:04:55 +0100 |
| commit | 93f379e6cfadfded0d262192ca69d1abc096d90e (patch) | |
| tree | 43f180e31ee26ee94f7d2dd559132c30c6476b4d /drivers/hid/hid-magicmouse.c | |
| parent | 77955e37bd395f789900b8e180991ad67cabd899 (diff) | |
Squashandroid-20111223
Change-Id: I2fcf46d1fc4b0cd4c61e5be3654c43b80db86015
Diffstat (limited to 'drivers/hid/hid-magicmouse.c')
| -rw-r--r-- | drivers/hid/hid-magicmouse.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/drivers/hid/hid-magicmouse.c b/drivers/hid/hid-magicmouse.c index 0ec91c18a42..56d0539f2a3 100644 --- a/drivers/hid/hid-magicmouse.c +++ b/drivers/hid/hid-magicmouse.c @@ -501,9 +501,17 @@ static int magicmouse_probe(struct hid_device *hdev, } report->size = 6; + /* + * Some devices repond with 'invalid report id' when feature + * report switching it into multitouch mode is sent to it. + * + * This results in -EIO from the _raw low-level transport callback, + * but there seems to be no other way of switching the mode. + * Thus the super-ugly hacky success check below. + */ ret = hdev->hid_output_raw_report(hdev, feature, sizeof(feature), HID_FEATURE_REPORT); - if (ret != sizeof(feature)) { + if (ret != -EIO && ret != sizeof(feature)) { hid_err(hdev, "unable to request touch data (%d)\n", ret); goto err_stop_hw; } |