summaryrefslogtreecommitdiffstats
path: root/drivers/usb/core/hub.c
diff options
context:
space:
mode:
authorInaky Perez-Gonzalez <inaky@linux.intel.com>2008-04-08 13:24:46 -0700
committerGreg Kroah-Hartman <gregkh@suse.de>2008-04-24 21:16:58 -0700
commit6c529cdca914ba2a08a4bba54f11dedc2d3a7c17 (patch)
treeb844a19181db9f3688a3334945f2417cc2d410d3 /drivers/usb/core/hub.c
parent8af548dc8e36f845943ffcba07fafaa56c844221 (diff)
downloadblackbird-op-linux-6c529cdca914ba2a08a4bba54f11dedc2d3a7c17.tar.gz
blackbird-op-linux-6c529cdca914ba2a08a4bba54f11dedc2d3a7c17.zip
wusb: devices dont use a set address
A WUSB device gets his address during the connection phase; later on, during the authenthication phase (driven from user space) we assign the final address. So we need to skip in hub_port_init() the actual setting of the address for WUSB devices. Signed-off-by: Inaky Perez-Gonzalez <inaky@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/usb/core/hub.c')
-rw-r--r--drivers/usb/core/hub.c47
1 files changed, 27 insertions, 20 deletions
diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c
index baae2aa0dbf6..1815034ccb7a 100644
--- a/drivers/usb/core/hub.c
+++ b/drivers/usb/core/hub.c
@@ -2419,26 +2419,33 @@ hub_port_init (struct usb_hub *hub, struct usb_device *udev, int port1,
#undef GET_DESCRIPTOR_BUFSIZE
}
- for (j = 0; j < SET_ADDRESS_TRIES; ++j) {
- retval = hub_set_address(udev, devnum);
- if (retval >= 0)
+ /*
+ * If device is WUSB, we already assigned an
+ * unauthorized address in the Connect Ack sequence;
+ * authorization will assign the final address.
+ */
+ if (udev->wusb == 0) {
+ for (j = 0; j < SET_ADDRESS_TRIES; ++j) {
+ retval = hub_set_address(udev, devnum);
+ if (retval >= 0)
+ break;
+ msleep(200);
+ }
+ if (retval < 0) {
+ dev_err(&udev->dev,
+ "device not accepting address %d, error %d\n",
+ devnum, retval);
+ goto fail;
+ }
+
+ /* cope with hardware quirkiness:
+ * - let SET_ADDRESS settle, some device hardware wants it
+ * - read ep0 maxpacket even for high and low speed,
+ */
+ msleep(10);
+ if (USE_NEW_SCHEME(retry_counter))
break;
- msleep(200);
- }
- if (retval < 0) {
- dev_err(&udev->dev,
- "device not accepting address %d, error %d\n",
- devnum, retval);
- goto fail;
- }
-
- /* cope with hardware quirkiness:
- * - let SET_ADDRESS settle, some device hardware wants it
- * - read ep0 maxpacket even for high and low speed,
- */
- msleep(10);
- if (USE_NEW_SCHEME(retry_counter))
- break;
+ }
retval = usb_get_device_descriptor(udev, 8);
if (retval < 8) {
@@ -2455,7 +2462,7 @@ hub_port_init (struct usb_hub *hub, struct usb_device *udev, int port1,
if (retval)
goto fail;
- i = udev->descriptor.bMaxPacketSize0 == 0xff?
+ i = udev->descriptor.bMaxPacketSize0 == 0xff? /* wusb device? */
512 : udev->descriptor.bMaxPacketSize0;
if (le16_to_cpu(udev->ep0.desc.wMaxPacketSize) != i) {
if (udev->speed != USB_SPEED_FULL ||
OpenPOWER on IntegriCloud