Author: hselasky
Date: Mon Jun 11 17:22:27 2012
New Revision: 236896
URL: http://svn.freebsd.org/changeset/base/236896
Log:
MFC r236407:
Improve support for detaching kernel drivers on a per interface basis.
Modified:
stable/8/sys/dev/usb/usb_device.c
stable/8/sys/dev/usb/usb_generic.c
Directory Properties:
stable/8/sys/ (props changed)
Modified: stable/8/sys/dev/usb/usb_device.c
==============================================================================
--- stable/8/sys/dev/usb/usb_device.c Mon Jun 11 17:18:31 2012
(r236895)
+++ stable/8/sys/dev/usb/usb_device.c Mon Jun 11 17:22:27 2012
(r236896)
@@ -750,10 +750,13 @@ usb_config_parse(struct usb_device *udev
if (do_init) {
/* setup the USB interface structure */
iface->idesc = id;
- /* default setting */
- iface->parent_iface_index = USB_IFACE_INDEX_ANY;
/* set alternate index */
iface->alt_index = alt_index;
+ /* set default interface parent */
+ if (iface_index == USB_IFACE_INDEX_ANY) {
+ iface->parent_iface_index =
+ USB_IFACE_INDEX_ANY;
+ }
}
DPRINTFN(5, "found idesc nendpt=%d\n", id->bNumEndpoints);
@@ -1229,10 +1232,13 @@ usbd_set_parent_iface(struct usb_device
{
struct usb_interface *iface;
+ if (udev == NULL) {
+ /* nothing to do */
+ return;
+ }
iface = usbd_get_iface(udev, iface_index);
- if (iface) {
+ if (iface != NULL)
iface->parent_iface_index = parent_index;
- }
}
static void
Modified: stable/8/sys/dev/usb/usb_generic.c
==============================================================================
--- stable/8/sys/dev/usb/usb_generic.c Mon Jun 11 17:18:31 2012
(r236895)
+++ stable/8/sys/dev/usb/usb_generic.c Mon Jun 11 17:22:27 2012
(r236896)
@@ -2166,7 +2166,16 @@ ugen_ioctl_post(struct usb_fifo *f, u_lo
break;
}
+ /*
+ * Detach the currently attached driver.
+ */
usb_detach_device(f->udev, n, 0);
+
+ /*
+ * Set parent to self, this should keep attach away
+ * until the next set configuration event.
+ */
+ usbd_set_parent_iface(f->udev, n, n);
break;
case USB_SET_POWER_MODE:
_______________________________________________
svn-src-all@freebsd.org mailing list
http://lists.freebsd.org/mailman/listinfo/svn-src-all
To unsubscribe, send any mail to "svn-src-all-unsubscr...@freebsd.org"
