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-rw-r--r--hw/usb/desc.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/hw/usb/desc.c b/hw/usb/desc.c
index f133ddb9db..ab48691363 100644
--- a/hw/usb/desc.c
+++ b/hw/usb/desc.c
@@ -759,7 +759,7 @@ int usb_desc_handle_control(USBDevice *dev, USBPacket *p,
          * We return the same value that a configured device would return if
          * it used the first configuration.
          */
-        if (config->bmAttributes & 0x40) {
+        if (config->bmAttributes & USB_CFG_ATT_SELFPOWER) {
             data[0] |= 1 << USB_DEVICE_SELF_POWERED;
         }
         if (dev->remote_wakeup) {