Merge master.kernel.org:/pub/scm/linux/kernel/git/gregkh/usb-2.6

[sfrench/cifs-2.6.git] / drivers / usb / core / message.c

diff --git a/drivers/usb/core/message.c b/drivers/usb/core/message.c
index b6bd05e3d439eb41f6c87633d9bba10960d45498..d8f7b089a8f0ad243f3218cbb50c78deed02301b 100644 (file)
--- a/drivers/usb/core/message.c
+++ b/drivers/usb/core/message.c
@@ -637,12 +637,12 @@ int usb_get_descriptor(struct usb_device *dev, unsigned char type, unsigned char
        memset(buf,0,size);     // Make sure we parse really received data
 
        for (i = 0; i < 3; ++i) {
-               /* retry on length 0 or stall; some devices are flakey */
+               /* retry on length 0 or error; some devices are flakey */
                result = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0),
                                USB_REQ_GET_DESCRIPTOR, USB_DIR_IN,
                                (type << 8) + index, 0, buf, size,
                                USB_CTRL_GET_TIMEOUT);
-               if (result == 0 || result == -EPIPE)
+               if (result <= 0 && result != -ETIMEDOUT)
                        continue;
                if (result > 1 && ((u8 *)buf)[1] != type) {
                        result = -EPROTO;
@@ -1358,6 +1358,30 @@ static int usb_if_uevent(struct device *dev, char **envp, int num_envp,
        usb_dev = interface_to_usbdev(intf);
        alt = intf->cur_altsetting;
 
+#ifdef CONFIG_USB_DEVICEFS
+       if (add_uevent_var(envp, num_envp, &i,
+                          buffer, buffer_size, &length,
+                          "DEVICE=/proc/bus/usb/%03d/%03d",
+                          usb_dev->bus->busnum, usb_dev->devnum))
+               return -ENOMEM;
+#endif
+
+       if (add_uevent_var(envp, num_envp, &i,
+                          buffer, buffer_size, &length,
+                          "PRODUCT=%x/%x/%x",
+                          le16_to_cpu(usb_dev->descriptor.idVendor),
+                          le16_to_cpu(usb_dev->descriptor.idProduct),
+                          le16_to_cpu(usb_dev->descriptor.bcdDevice)))
+               return -ENOMEM;
+
+       if (add_uevent_var(envp, num_envp, &i,
+                          buffer, buffer_size, &length,
+                          "TYPE=%d/%d/%d",
+                          usb_dev->descriptor.bDeviceClass,
+                          usb_dev->descriptor.bDeviceSubClass,
+                          usb_dev->descriptor.bDeviceProtocol))
+               return -ENOMEM;
+
        if (add_uevent_var(envp, num_envp, &i,
                   buffer, buffer_size, &length,
                   "INTERFACE=%d/%d/%d",