only simtrace is bus-powered, SAM3 on qmod + owhw are self-powered
diff --git a/firmware/libboard/qmod/include/board.h b/firmware/libboard/qmod/include/board.h
index 16a38a8..106d5d0 100644
--- a/firmware/libboard/qmod/include/board.h
+++ b/firmware/libboard/qmod/include/board.h
@@ -55,6 +55,8 @@
#define PIN_VERSION_DET {PIO_PA19, PIOA, ID_PIOA, PIO_PERIPH_D, PIO_DEFAULT}
+#define BOARD_USB_BMATTRIBUTES USBConfigurationDescriptor_SELFPOWERED_NORWAKEUP
+
#define SIMTRACE_VENDOR_ID 0x1d50
#define SIMTRACE_PRODUCT_ID 0x60e3 /* FIXME */
#define USB_VENDOR_ID SIMTRACE_VENDOR_ID