diff options
| -rw-r--r-- | drivers/usb/input/hid-core.c | 37 |
1 files changed, 32 insertions, 5 deletions
diff --git a/drivers/usb/input/hid-core.c b/drivers/usb/input/hid-core.c index c6051beeabd..17b6e6ab370 100644 --- a/drivers/usb/input/hid-core.c +++ b/drivers/usb/input/hid-core.c @@ -944,21 +944,28 @@ static void hid_reset(void *_hid) dev_dbg(&hid->intf->dev, "resetting device\n"); rc = rc_lock = usb_lock_device_for_reset(hid->dev, hid->intf); if (rc_lock >= 0) { - rc = usb_reset_device(hid->dev); + rc = usb_reset_composite_device(hid->dev, hid->intf); if (rc_lock) usb_unlock_device(hid->dev); } clear_bit(HID_RESET_PENDING, &hid->iofl); - if (rc == 0) { - hid->retry_delay = 0; - if (hid_start_in(hid)) + switch (rc) { + case 0: + if (!test_bit(HID_IN_RUNNING, &hid->iofl)) hid_io_error(hid); - } else if (!(rc == -ENODEV || rc == -EHOSTUNREACH || rc == -EINTR)) + break; + default: err("can't reset device, %s-%s/input%d, status %d", hid->dev->bus->bus_name, hid->dev->devpath, hid->ifnum, rc); + /* FALLTHROUGH */ + case -EHOSTUNREACH: + case -ENODEV: + case -EINTR: + break; + } } /* Main I/O error handler */ @@ -2063,11 +2070,29 @@ static int hid_resume(struct usb_interface *intf) int status; clear_bit(HID_SUSPENDED, &hid->iofl); + hid->retry_delay = 0; status = hid_start_in(hid); dev_dbg(&intf->dev, "resume status %d\n", status); return status; } +/* Treat USB reset pretty much the same as suspend/resume */ +static void hid_pre_reset(struct usb_interface *intf) +{ + /* FIXME: What if the interface is already suspended? */ + hid_suspend(intf, PMSG_ON); +} + +static void hid_post_reset(struct usb_interface *intf) +{ + struct usb_device *dev = interface_to_usbdev (intf); + + hid_set_idle(dev, intf->cur_altsetting->desc.bInterfaceNumber, 0, 0); + /* FIXME: Any more reinitialization needed? */ + + hid_resume(intf); +} + static struct usb_device_id hid_usb_ids [] = { { .match_flags = USB_DEVICE_ID_MATCH_INT_CLASS, .bInterfaceClass = USB_INTERFACE_CLASS_HID }, @@ -2082,6 +2107,8 @@ static struct usb_driver hid_driver = { .disconnect = hid_disconnect, .suspend = hid_suspend, .resume = hid_resume, + .pre_reset = hid_pre_reset, + .post_reset = hid_post_reset, .id_table = hid_usb_ids, }; |