diff options
Diffstat (limited to 'drivers/usb/core/hcd.c')
| -rw-r--r-- | drivers/usb/core/hcd.c | 27 |
1 files changed, 24 insertions, 3 deletions
diff --git a/drivers/usb/core/hcd.c b/drivers/usb/core/hcd.c index 9d7fc9a3993..190b1ec7bdc 100644 --- a/drivers/usb/core/hcd.c +++ b/drivers/usb/core/hcd.c @@ -138,7 +138,7 @@ static const u8 usb3_rh_dev_descriptor[18] = { 0x03, /* __u8 bDeviceProtocol; USB 3.0 hub */ 0x09, /* __u8 bMaxPacketSize0; 2^9 = 512 Bytes */ - 0x6b, 0x1d, /* __le16 idVendor; Linux Foundation */ + 0x6b, 0x1d, /* __le16 idVendor; Linux Foundation 0x1d6b */ 0x03, 0x00, /* __le16 idProduct; device 0x0003 */ KERNEL_VER, KERNEL_REL, /* __le16 bcdDevice */ @@ -159,7 +159,7 @@ static const u8 usb2_rh_dev_descriptor [18] = { 0x00, /* __u8 bDeviceProtocol; [ usb 2.0 no TT ] */ 0x40, /* __u8 bMaxPacketSize0; 64 Bytes */ - 0x6b, 0x1d, /* __le16 idVendor; Linux Foundation */ + 0x6b, 0x1d, /* __le16 idVendor; Linux Foundation 0x1d6b */ 0x02, 0x00, /* __le16 idProduct; device 0x0002 */ KERNEL_VER, KERNEL_REL, /* __le16 bcdDevice */ @@ -182,7 +182,7 @@ static const u8 usb11_rh_dev_descriptor [18] = { 0x00, /* __u8 bDeviceProtocol; [ low/full speeds only ] */ 0x40, /* __u8 bMaxPacketSize0; 64 Bytes */ - 0x6b, 0x1d, /* __le16 idVendor; Linux Foundation */ + 0x6b, 0x1d, /* __le16 idVendor; Linux Foundation 0x1d6b */ 0x01, 0x00, /* __le16 idProduct; device 0x0001 */ KERNEL_VER, KERNEL_REL, /* __le16 bcdDevice */ @@ -997,6 +997,15 @@ static int register_root_hub(struct usb_hcd *hcd) dev_name(&usb_dev->dev), retval); return (retval < 0) ? retval : -EMSGSIZE; } + if (usb_dev->speed == USB_SPEED_SUPER) { + retval = usb_get_bos_descriptor(usb_dev); + if (retval < 0) { + mutex_unlock(&usb_bus_list_lock); + dev_dbg(parent_dev, "can't read %s bos descriptor %d\n", + dev_name(&usb_dev->dev), retval); + return retval; + } + } retval = usb_new_device (usb_dev); if (retval) { @@ -1978,6 +1987,18 @@ int hcd_bus_suspend(struct usb_device *rhdev, pm_message_t msg) if (status == 0) { usb_set_device_state(rhdev, USB_STATE_SUSPENDED); hcd->state = HC_STATE_SUSPENDED; + + /* Did we race with a root-hub wakeup event? */ + if (rhdev->do_remote_wakeup) { + char buffer[6]; + + status = hcd->driver->hub_status_data(hcd, buffer); + if (status != 0) { + dev_dbg(&rhdev->dev, "suspend raced with wakeup event\n"); + hcd_bus_resume(rhdev, PMSG_AUTO_RESUME); + status = -EBUSY; + } + } } else { spin_lock_irq(&hcd_root_hub_lock); if (!HCD_DEAD(hcd)) { |