diff options
Diffstat (limited to 'drivers/hid/hid-sony.c')
| -rw-r--r-- | drivers/hid/hid-sony.c | 14 |
1 files changed, 12 insertions, 2 deletions
diff --git a/drivers/hid/hid-sony.c b/drivers/hid/hid-sony.c index 6d2d459e9a5..9769c0030bc 100644 --- a/drivers/hid/hid-sony.c +++ b/drivers/hid/hid-sony.c @@ -65,9 +65,19 @@ static __u8 *sony_report_fixup(struct hid_device *hdev, __u8 *rdesc, { struct sony_sc *sc = hid_get_drvdata(hdev); - if ((sc->quirks & VAIO_RDESC_CONSTANT) && - *rsize >= 56 && rdesc[54] == 0x81 && rdesc[55] == 0x07) { + /* + * Some Sony RF receivers wrongly declare the mouse pointer as a + * a constant non-data variable. + */ + if ((sc->quirks & VAIO_RDESC_CONSTANT) && *rsize >= 56 && + /* usage page: generic desktop controls */ + /* rdesc[0] == 0x05 && rdesc[1] == 0x01 && */ + /* usage: mouse */ + rdesc[2] == 0x09 && rdesc[3] == 0x02 && + /* input (usage page for x,y axes): constant, variable, relative */ + rdesc[54] == 0x81 && rdesc[55] == 0x07) { hid_info(hdev, "Fixing up Sony RF Receiver report descriptor\n"); + /* input: data, variable, relative */ rdesc[55] = 0x06; } |