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path: root/drivers/hid/hid-sony.c
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Diffstat (limited to 'drivers/hid/hid-sony.c')
-rw-r--r--drivers/hid/hid-sony.c29
1 files changed, 26 insertions, 3 deletions
diff --git a/drivers/hid/hid-sony.c b/drivers/hid/hid-sony.c
index 73c0f7a95e2d..2f073f536070 100644
--- a/drivers/hid/hid-sony.c
+++ b/drivers/hid/hid-sony.c
@@ -867,6 +867,23 @@ static u8 *sony_report_fixup(struct hid_device *hdev, u8 *rdesc,
if (sc->quirks & PS3REMOTE)
return ps3remote_fixup(hdev, rdesc, rsize);
+ /*
+ * Some knock-off USB dongles incorrectly report their button count
+ * as 13 instead of 16 causing three non-functional buttons.
+ */
+ if ((sc->quirks & SIXAXIS_CONTROLLER_USB) && *rsize >= 45 &&
+ /* Report Count (13) */
+ rdesc[23] == 0x95 && rdesc[24] == 0x0D &&
+ /* Usage Maximum (13) */
+ rdesc[37] == 0x29 && rdesc[38] == 0x0D &&
+ /* Report Count (3) */
+ rdesc[43] == 0x95 && rdesc[44] == 0x03) {
+ hid_info(hdev, "Fixing up USB dongle report descriptor\n");
+ rdesc[24] = 0x10;
+ rdesc[38] = 0x10;
+ rdesc[44] = 0x00;
+ }
+
return rdesc;
}
@@ -2254,9 +2271,15 @@ static int sony_play_effect(struct input_dev *dev, void *data,
static int sony_init_ff(struct sony_sc *sc)
{
- struct hid_input *hidinput = list_entry(sc->hdev->inputs.next,
- struct hid_input, list);
- struct input_dev *input_dev = hidinput->input;
+ struct hid_input *hidinput;
+ struct input_dev *input_dev;
+
+ if (list_empty(&sc->hdev->inputs)) {
+ hid_err(sc->hdev, "no inputs found\n");
+ return -ENODEV;
+ }
+ hidinput = list_entry(sc->hdev->inputs.next, struct hid_input, list);
+ input_dev = hidinput->input;
input_set_capability(input_dev, EV_FF, FF_RUMBLE);
return input_ff_create_memless(input_dev, NULL, sony_play_effect);