static int tweak_reset_device_cmd(struct urb *urb)
{
struct usb_ctrlrequest *req;
__u16 value;
__u16 index;
int ret;
req = (struct usb_ctrlrequest *) urb->setup_packet;
value = le16_to_cpu(req->wValue);
index = le16_to_cpu(req->wIndex);
#if 0 /* hided by tf, for reason that "bus_id" isn't supported in kernel2.6.31 */
uinfo("reset_device (port %d) to %s\n", index, urb->dev->dev.bus_id);
#endif
/* all interfaces should be owned by usbip driver, so just reset it. */
ret = usb_lock_device_for_reset(urb->dev, NULL);
if (ret < 0) {
uerr("lock for reset\n");
return ret;
}
#if 0 /* hided it temporarily */
/* try to reset the device */
ret = usb_reset_composite_device(urb->dev, NULL);
if (ret < 0)
uerr("device reset\n");
#endif
usb_unlock_device(urb->dev);
return ret;
}
static int tweak_reset_device_cmd(struct urb *urb)
{
struct usb_ctrlrequest *req;
__u16 value;
__u16 index;
int ret;
req = (struct usb_ctrlrequest *) urb->setup_packet;
value = le16_to_cpu(req->wValue);
index = le16_to_cpu(req->wIndex);
uinfo("reset_device (port %d) to %s\n", index, urb->dev->dev.bus_id);
/* all interfaces should be owned by usbip driver, so just reset it. */
ret = usb_lock_device_for_reset(urb->dev, NULL);
if (ret < 0) {
uerr("lock for reset\n");
return ret;
}
/* try to reset the device */
ret = usb_reset_composite_device(urb->dev, NULL);
if (ret < 0)
uerr("device reset\n");
usb_unlock_device(urb->dev);
return ret;
}
/* Issue a USB port reset to the device. The caller must not hold
* us->dev_mutex.
*/
int usb_stor_port_reset(struct us_data *us)
{
int result, rc_lock;
result = rc_lock =
usb_lock_device_for_reset(us->pusb_dev, us->pusb_intf);
if (result < 0)
US_DEBUGP("unable to lock device for reset: %d\n", result);
else {
/* Were we disconnected while waiting for the lock? */
if (test_bit(US_FLIDX_DISCONNECTING, &us->flags)) {
result = -EIO;
US_DEBUGP("No reset during disconnect\n");
} else {
result = usb_reset_composite_device(
us->pusb_dev, us->pusb_intf);
US_DEBUGP("usb_reset_composite_device returns %d\n",
result);
}
if (rc_lock)
usb_unlock_device(us->pusb_dev);
}
return result;
}
