update usbdrv to recent release 20121206

[pub/USBaspLoader.git] / firmware / usbconfig.h

diff --git a/firmware/usbconfig.h b/firmware/usbconfig.h
index c266544..ae9eee6 100644 (file)
--- a/firmware/usbconfig.h
+++ b/firmware/usbconfig.h
@@ -305,6 +305,15 @@
 #define USB_CFG_DESCR_PROPS_HID_REPORT              0
 #define USB_CFG_DESCR_PROPS_UNKNOWN                 0
 
+
+#define usbMsgPtr_t unsigned short
+/* If usbMsgPtr_t is not defined, it defaults to 'uchar *'. We define it to
+ * a scalar type here because gcc generates slightly shorter code for scalar
+ * arithmetics than for pointer arithmetics. Remove this define for backward
+ * type compatibility or define it to an 8 bit type if you use data in RAM only
+ * and all RAM is below 256 bytes (tiny memory model in IAR CC).
+ */
+
 /* ----------------------- Optional MCU Description ------------------------ */
 
 /* The following configurations have working defaults in usbdrv.h. You