diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/usb/core/hub.c | 11 | ||||
| -rw-r--r-- | drivers/usb/core/hub.h | 3 |
2 files changed, 12 insertions, 2 deletions
diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c index 3924dd080be..bdf5be09965 100644 --- a/drivers/usb/core/hub.c +++ b/drivers/usb/core/hub.c @@ -1658,6 +1658,8 @@ hub_port_resume(struct usb_hub *hub, int port1, struct usb_device *udev) // dev_dbg(hub->intfdev, "resume port %d\n", port1); + set_bit(port1, hub->busy_bits); + /* see 7.1.7.7; affects power usage, but not budgeting */ status = clear_port_feature(hub->hdev, port1, USB_PORT_FEAT_SUSPEND); @@ -1707,6 +1709,10 @@ hub_port_resume(struct usb_hub *hub, int port1, struct usb_device *udev) if (status < 0) hub_port_logical_disconnect(hub, port1); + clear_bit(port1, hub->busy_bits); + if (!hub->hdev->parent && !hub->busy_bits[0]) + usb_enable_root_hub_irq(hub->hdev->bus); + return status; } @@ -2690,7 +2696,7 @@ static void hub_events(void) /* If this is a root hub, tell the HCD it's okay to * re-enable port-change interrupts now. */ - if (!hdev->parent) + if (!hdev->parent && !hub->busy_bits[0]) usb_enable_root_hub_irq(hdev->bus); loop: @@ -2865,6 +2871,9 @@ int usb_reset_device(struct usb_device *udev) break; } clear_bit(port1, parent_hub->busy_bits); + if (!parent_hdev->parent && !parent_hub->busy_bits[0]) + usb_enable_root_hub_irq(parent_hdev->bus); + if (ret < 0) goto re_enumerate; diff --git a/drivers/usb/core/hub.h b/drivers/usb/core/hub.h index 29d5f45a845..0f8e82a4d48 100644 --- a/drivers/usb/core/hub.h +++ b/drivers/usb/core/hub.h @@ -212,7 +212,8 @@ struct usb_hub { unsigned long event_bits[1]; /* status change bitmask */ unsigned long change_bits[1]; /* ports with logical connect status change */ - unsigned long busy_bits[1]; /* ports being reset */ + unsigned long busy_bits[1]; /* ports being reset or + resumed */ #if USB_MAXCHILDREN > 31 /* 8*sizeof(unsigned long) - 1 */ #error event_bits[] is too short! #endif |