http://bugs.gentoo.org/435866
http://github.com/libusbx/libusbx/commit/3f513b62467d1842ec0771aaec01fde2f57bfb9c

--- lsusb.c
+++ lsusb.c
@@ -437,7 +437,11 @@
 		printf("      Remote Wakeup\n");
 	if (config->bmAttributes & 0x10)
 		printf("      Battery Powered\n");
+	#if defined(LIBUSBX_API_VERSION) && (LIBUSBX_API_VERSION >= 0x01000100)
+	printf("    MaxPower            %5umA\n", config->bMaxPower * 2);
+	#else
 	printf("    MaxPower            %5umA\n", config->MaxPower * 2);
+	#endif
 
 	/* avoid re-ordering or hiding descriptors for display */
 	if (config->extra_length) {