io->urbs [i]->complete = sg_complete;
io->urbs [i]->context = io;
- io->urbs [i]->status = -EINPROGRESS;
- io->urbs [i]->actual_length = 0;
/*
* Some systems need to revert to PIO when DMA is temporarily
/* queue the urbs. */
spin_lock_irq (&io->lock);
- for (i = 0; i < entries && !io->status; i++) {
+ i = 0;
+ while (i < entries && !io->status) {
int retval;
io->urbs [i]->dev = io->dev;
case -ENOMEM:
io->urbs[i]->dev = NULL;
retval = 0;
- i--;
yield ();
break;
* URBs are queued at once; N milliseconds?
*/
case 0:
+ ++i;
cpu_relax ();
break;
.uevent = usb_if_uevent,
};
+static struct usb_interface_assoc_descriptor *find_iad(struct usb_device *dev,
+ struct usb_host_config *config,
+ u8 inum)
+{
+ struct usb_interface_assoc_descriptor *retval = NULL;
+ struct usb_interface_assoc_descriptor *intf_assoc;
+ int first_intf;
+ int last_intf;
+ int i;
+
+ for (i = 0; (i < USB_MAXIADS && config->intf_assoc[i]); i++) {
+ intf_assoc = config->intf_assoc[i];
+ if (intf_assoc->bInterfaceCount == 0)
+ continue;
+
+ first_intf = intf_assoc->bFirstInterface;
+ last_intf = first_intf + (intf_assoc->bInterfaceCount - 1);
+ if (inum >= first_intf && inum <= last_intf) {
+ if (!retval)
+ retval = intf_assoc;
+ else
+ dev_err(&dev->dev, "Interface #%d referenced"
+ " by multiple IADs\n", inum);
+ }
+ }
+
+ return retval;
+}
+
+
/*
* usb_set_configuration - Makes a particular device setting be current
* @dev: the device whose configuration is being updated
intfc = cp->intf_cache[i];
intf->altsetting = intfc->altsetting;
intf->num_altsetting = intfc->num_altsetting;
+ intf->intf_assoc = find_iad(dev, cp, i);
kref_get(&intfc->ref);
alt = usb_altnum_to_altsetting(intf, 0);