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-rw-r--r--firmware/export/usb_core.h5
-rw-r--r--firmware/usbstack/usb_core.c13
2 files changed, 18 insertions, 0 deletions
diff --git a/firmware/export/usb_core.h b/firmware/export/usb_core.h
index 3629645d53..a6cf086e18 100644
--- a/firmware/export/usb_core.h
+++ b/firmware/export/usb_core.h
@@ -57,5 +57,10 @@ int usb_core_ack_control(struct usb_ctrlrequest* req);
#ifdef HAVE_HOTSWAP
void usb_core_hotswap_event(int volume,bool inserted);
#endif
+
+#ifdef HAVE_USB_POWER
+unsigned short usb_allowed_current(void);
+#endif
+
#endif
diff --git a/firmware/usbstack/usb_core.c b/firmware/usbstack/usb_core.c
index 759a342dd2..654ed95b4d 100644
--- a/firmware/usbstack/usb_core.c
+++ b/firmware/usbstack/usb_core.c
@@ -726,3 +726,16 @@ int usb_core_ack_control(struct usb_ctrlrequest* req)
return usb_drv_send(EP_CONTROL, NULL, 0);
}
+#ifdef HAVE_USB_POWER
+unsigned short usb_allowed_current()
+{
+ if (usb_state == CONFIGURED)
+ {
+ return 500;
+ }
+ else
+ {
+ return 100;
+ }
+}
+#endif