1 files changed, 27 insertions, 1 deletions

diff --git a/drivers/hid/hid-lgff.c b/drivers/hid/hid-lgff.c
index e379c167ac9e..51aff08e10ce 100644
--- a/drivers/hid/hid-lgff.c
+++ b/drivers/hid/hid-lgff.c
@@ -50,6 +50,12 @@ static const signed short ff_joystick[] = {
         -1
 };
 
+static const signed short ff_wheel[] = {
+        FF_CONSTANT,
+        FF_AUTOCENTER,
+        -1
+};
+
 static const struct dev_type devices[] = {
         { 0x046d, 0xc211, ff_rumble },
         { 0x046d, 0xc219, ff_rumble },
@@ -57,7 +63,7 @@ static const struct dev_type devices[] = {
         { 0x046d, 0xc286, ff_joystick },
         { 0x046d, 0xc294, ff_joystick },
         { 0x046d, 0xc295, ff_joystick },
-        { 0x046d, 0xca03, ff_joystick },
+        { 0x046d, 0xca03, ff_wheel },
 };
 
 static int hid_lgff_play(struct input_dev *dev, void *data, struct ff_effect *effect)
@@ -102,6 +108,23 @@ static int hid_lgff_play(struct input_dev *dev, void *data, struct ff_effect *ef
         return 0;
 }
 
+static void hid_lgff_set_autocenter(struct input_dev *dev, u16 magnitude)
+{
+        struct hid_device *hid = input_get_drvdata(dev);
+        struct list_head *report_list = &hid->report_enum[HID_OUTPUT_REPORT].report_list;
+        struct hid_report *report = list_entry(report_list->next, struct hid_report, list);
+        __s32 *value = report->field[0]->value;
+        magnitude = (magnitude >> 12) & 0xf;
+        *value++ = 0xfe;
+        *value++ = 0x0d;
+        *value++ = magnitude;   /* clockwise strength */
+        *value++ = magnitude;   /* counter-clockwise strength */
+        *value++ = 0x80;
+        *value++ = 0x00;
+        *value = 0x00;
+        usbhid_submit_report(hid, report, USB_DIR_OUT);
+}
+
 int lgff_init(struct hid_device* hid)
 {
         struct hid_input *hidinput = list_entry(hid->inputs.next, struct hid_input, list);
@@ -147,6 +170,9 @@ int lgff_init(struct hid_device* hid)
         if (error)
                 return error;
 
+        if ( test_bit(FF_AUTOCENTER, dev->ffbit) )
+                dev->ff->set_autocenter = hid_lgff_set_autocenter;
+
         printk(KERN_INFO "Force feedback for Logitech force feedback devices by Johann Deneux <johann.deneux@it.uu.se>\n");
 
         return 0;