HID: use hid-plff driver for GreenAsia 0e8f:0003 devices

Add 0e8f:0003 into the list of devices supported by the hid-plff
force feedback driver. These devices identify themselves as
"GreenAsia Inc.    USB Joystick     " and can be either adapters or
actual game controllers. The testing was done with a Köng Gaming
gamepad.

Signed-off-by: Anssi Hannula <anssi.hannula@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>

3 files changed, 22 insertions, 11 deletions

diff --git a/drivers/hid/usbhid/Kconfig b/drivers/hid/usbhid/Kconfig
index b27023f23c87..c557d7040a69 100644
--- a/drivers/hid/usbhid/Kconfig
+++ b/drivers/hid/usbhid/Kconfig
@@ -71,12 +71,12 @@ config LOGITECH_FF
           force feedback.
 
 config PANTHERLORD_FF
-        bool "PantherLord USB/PS2 2in1 Adapter support"
+        bool "PantherLord/GreenAsia based device support"
         depends on HID_FF
         select INPUT_FF_MEMLESS if USB_HID
         help
-          Say Y here if you have a PantherLord USB/PS2 2in1 Adapter and want
-          to enable force feedback support for it.
+          Say Y here if you have a PantherLord/GreenAsia based game controller
+          or adapter and want to enable force feedback support for it.
 
 config THRUSTMASTER_FF
         bool "ThrustMaster devices support (EXPERIMENTAL)"
diff --git a/drivers/hid/usbhid/hid-ff.c b/drivers/hid/usbhid/hid-ff.c
index 5dacd8ec8072..22329feb3b5a 100644
--- a/drivers/hid/usbhid/hid-ff.c
+++ b/drivers/hid/usbhid/hid-ff.c
@@ -62,7 +62,8 @@ static struct hid_ff_initializer inits[] = {
         { 0x46d, 0xca03, hid_lgff_init }, /* Logitech MOMO force wheel */
 #endif
 #ifdef CONFIG_PANTHERLORD_FF
-        { 0x810, 0x0001, hid_plff_init },
+        { 0x810, 0x0001, hid_plff_init }, /* "Twin USB Joystick" */
+        { 0xe8f, 0x0003, hid_plff_init }, /* "GreenAsia Inc.    USB Joystick     " */
 #endif
 #ifdef CONFIG_THRUSTMASTER_FF
         { 0x44f, 0xb300, hid_tmff_init },
diff --git a/drivers/hid/usbhid/hid-plff.c b/drivers/hid/usbhid/hid-plff.c
index d6a8f2b49bd2..9eb83cf9d22b 100644
--- a/drivers/hid/usbhid/hid-plff.c
+++ b/drivers/hid/usbhid/hid-plff.c
@@ -1,5 +1,15 @@
 /*
- *  Force feedback support for PantherLord USB/PS2 2in1 Adapter devices
+ *  Force feedback support for PantherLord/GreenAsia based devices
+ *
+ *  The devices are distributed under various names and the same USB device ID
+ *  can be used in both adapters and actual game controllers.
+ *
+ *  0810:0001 "Twin USB Joystick"
+ *   - tested with PantherLord USB/PS2 2in1 Adapter
+ *   - contains two reports, one for each port (HID_QUIRK_MULTI_INPUT)
+ *
+ *  0e8f:0003 "GreenAsia Inc.    USB Joystick     "
+ *   - tested with Köng Gaming gamepad
  *
  *  Copyright (c) 2007 Anssi Hannula <anssi.hannula@gmail.com>
  */
@@ -67,11 +77,11 @@ int hid_plff_init(struct hid_device *hid)
         struct input_dev *dev;
         int error;
 
-        /* The device contains 2 output reports (one for each
-           HID_QUIRK_MULTI_INPUT device), both containing 1 field, which
-           contains 4 ff00.0002 usages and 4 16bit absolute values.
+        /* The device contains one output report per physical device, all
+           containing 1 field, which contains 4 ff00.0002 usages and 4 16bit
+           absolute values.
 
-           The 2 input reports also contain a field which contains
+           The input reports also contain a field which contains
            8 ff00.0001 usages and 8 boolean values. Their meaning is
            currently unknown. */
 
@@ -122,8 +132,8 @@ int hid_plff_init(struct hid_device *hid)
                 usbhid_submit_report(hid, plff->report, USB_DIR_OUT);
         }
 
-        printk(KERN_INFO "hid-plff: Force feedback for PantherLord USB/PS2 "
-               "2in1 Adapters by Anssi Hannula <anssi.hannula@gmail.com>\n");
+        printk(KERN_INFO "hid-plff: Force feedback for PantherLord/GreenAsia "
+               "devices by Anssi Hannula <anssi.hannula@gmail.com>\n");
 
         return 0;
 }