Add hidsysSetAppletResourceUserId()

nx/include/switch/services/hidsys.h

@@ -317,6 +317,13 @@ Result hidsysHasLeftRightBattery(HidNpadIdType id, bool *out0, bool *out1);
  */
 Result hidsysGetUniquePadsFromNpad(HidNpadIdType id, HidsysUniquePadId *unique_pad_ids, s32 count, s32 *total_out);
 
+/**
+ * @brief Sets information that your AppletResourceUserId is in focus.
+ * @note This is automatically used by am-sysmodule, don't use it if your AppletType is other than None.
+ * @note Using it with uninitialized applet services results in your process being tied to currently focused applet.
+ */
+Result hidsysSetAppletResourceUserId();
+
 /**
  * @brief EnableAppletToGetInput
  * @param[in] enable Input flag.

nx/source/services/hidsys.c

@@ -331,6 +331,10 @@ Result hidsysGetUniquePadsFromNpad(HidNpadIdType id, HidsysUniquePadId *unique_p
     return rc;
 }
 
+Result hidsysSetAppletResourceUserId() {
+    return serviceDispatchIn(&g_hidsysSrv, 500, g_hidsysAppletResourceUserId);
+}
+
 Result hidsysEnableAppletToGetInput(bool enable) {
     const struct {
         u8 permitInput;