File joystick.patch of Package wine

Adds an env var WINE_JSHID_FORCEJS, can be used to force a JS HID device to look like a joystick.
Also skips the joystick if it has 0 buttons.
diff --git a/dlls/dinput/joystick_hid.c b/dlls/dinput/joystick_hid.c
index 367d635..0245d22 100644
--- a/dlls/dinput/joystick_hid.c
+++ b/dlls/dinput/joystick_hid.c
@@ -1395,6 +1395,8 @@ static HRESULT hid_joystick_device_try_open( const WCHAR *path, HANDLE *device,
                                              HIDD_ATTRIBUTES *attrs, HIDP_CAPS *caps, DIDEVICEINSTANCEW *instance,
                                              DWORD version )
 {
+    const char *force_js = NULL;
+    BOOL forced = 0;
     BOOL has_accelerator, has_brake, has_clutch, has_z, has_pov;
     PHIDP_PREPARSED_DATA preparsed_data = NULL;
     HIDP_LINK_COLLECTION_NODE nodes[256];
@@ -1424,6 +1426,21 @@ static HRESULT hid_joystick_device_try_open( const WCHAR *path, HANDLE *device,
     default: FIXME( "device usage %04x:%04x not implemented!\n", caps->UsagePage, caps->Usage); goto failed;
     }
 
+    force_js = getenv("WINE_JSHID_FORCEJS");
+    if (force_js)
+    {
+        /* is there a desire to support multiple overrides?..
+         * .. actually this is what the joy.cpl override button should do! */
+        char testbuf[10];
+        snprintf(testbuf, 10, "%04x:%04x", attrs->VendorID, attrs->ProductID);
+        if (strncmp(testbuf, force_js, 10) == 0)
+        {
+            caps->Usage = HID_USAGE_GENERIC_JOYSTICK;
+            type = DI8DEVTYPE_JOYSTICK;
+            forced = 1;
+        }
+    }
+
     if (!HidD_GetProductString( device_file, instance->tszInstanceName, MAX_PATH * sizeof(WCHAR) )) goto failed;
     if (!HidD_GetProductString( device_file, instance->tszProductName, MAX_PATH * sizeof(WCHAR) )) goto failed;
 
@@ -1465,6 +1482,8 @@ static HRESULT hid_joystick_device_try_open( const WCHAR *path, HANDLE *device,
         if (!buttons[count].IsRange) button_count += 1;
         else button_count += buttons[count].Range.UsageMax - buttons[count].Range.UsageMin + 1;
     }
+    /* Why... */
+    if (button_count == 0 && forced) goto failed;
 
     count = 1;
     status = HidP_GetSpecificValueCaps( HidP_Input, HID_USAGE_PAGE_GENERIC, 0, HID_USAGE_GENERIC_X,