X-Git-Url: https://codewiz.org/gitweb?a=blobdiff_plain;f=bertos%2Fdrv%2Fusb_endpoint.h;h=63c49bd5ff80033578add0498615d863fa2844aa;hb=7911a6f01bc8a19f220f98e2fdc8595f65996853;hp=f393425b0574d982b170dc0803f4d9c635222bfc;hpb=a44d704c7107582a746b905397c941777e32043d;p=bertos.git

diff --git a/bertos/drv/usb_endpoint.h b/bertos/drv/usb_endpoint.h
index f393425b..63c49bd5 100644
--- a/bertos/drv/usb_endpoint.h
+++ b/bertos/drv/usb_endpoint.h
@@ -42,6 +42,7 @@
 #ifndef USB_ENDPOINT_H
 #define USB_ENDPOINT_H
 
+#include "cfg/cfg_usb.h"
 #include "cfg/cfg_usbser.h"
 #include "cfg/cfg_usbkbd.h"
 #include "cfg/cfg_usbmouse.h"
@@ -60,7 +61,19 @@ enum {
 #if (defined(CONFIG_USBMOUSE) && CONFIG_USBMOUSE)
 	USB_MOUSE_EP_REPORT,
 #endif
-	USB_EP_MAX, /* Number of allocated endpoints */
+ /* Number of allocated endpoints */
+#if (CONFIG_USB_EP_MAX == 0)
+	USB_EP_MAX,
+#else
+	USB_EP_MAX = CONFIG_USB_EP_MAX,
+#endif
 };
 
+/*
+ * NOTE: a USB inteface requires at least one endpoint. Moreover, there's the
+ * special endpoint 0. In conclusion, the number of endpoints must be always
+ * greater than the number of interfaces.
+ */
+STATIC_ASSERT(USB_EP_MAX >= CONFIG_USB_INTERFACE_MAX);
+
 #endif /* USB_ENDPOINT_H */