diff options
Diffstat (limited to 'hw/usb/dev-hub.c')
| -rw-r--r-- | hw/usb/dev-hub.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/hw/usb/dev-hub.c b/hw/usb/dev-hub.c index a5f092bfee..0b71abd028 100644 --- a/hw/usb/dev-hub.c +++ b/hw/usb/dev-hub.c @@ -33,6 +33,7 @@ typedef struct USBHubPort { USBPort port; uint16_t wPortStatus; uint16_t wPortChange; + uint16_t wPortChange_reported; } USBHubPort; typedef struct USBHubState { @@ -467,8 +468,11 @@ static void usb_hub_handle_data(USBDevice *dev, USBPacket *p) status = 0; for(i = 0; i < NUM_PORTS; i++) { port = &s->ports[i]; - if (port->wPortChange) + if (port->wPortChange && + port->wPortChange_reported != port->wPortChange) { status |= (1 << (i + 1)); + } + port->wPortChange_reported = port->wPortChange; } if (status != 0) { for(i = 0; i < n; i++) { |