2 files changed, 29 insertions, 0 deletions

diff --git a/Documentation/ABI/testing/sysfs-bus-usb b/Documentation/ABI/testing/sysfs-bus-usb
index e647378e9e88..b4f548792e32 100644
--- a/Documentation/ABI/testing/sysfs-bus-usb
+++ b/Documentation/ABI/testing/sysfs-bus-usb
@@ -119,6 +119,31 @@ Description:
                 Write a 1 to force the device to disconnect
                 (equivalent to unplugging a wired USB device).
 
+What:           /sys/bus/usb/drivers/.../new_id
+Date:           October 2011
+Contact:        linux-usb@vger.kernel.org
+Description:
+                Writing a device ID to this file will attempt to
+                dynamically add a new device ID to a USB device driver.
+                This may allow the driver to support more hardware than
+                was included in the driver's static device ID support
+                table at compile time. The format for the device ID is:
+                idVendor idProduct bInterfaceClass.
+                The vendor ID and device ID fields are required, the
+                interface class is optional.
+                Upon successfully adding an ID, the driver will probe
+                for the device and attempt to bind to it.  For example:
+                # echo "8086 10f5" > /sys/bus/usb/drivers/foo/new_id
+
+What:           /sys/bus/usb-serial/drivers/.../new_id
+Date:           October 2011
+Contact:        linux-usb@vger.kernel.org
+Description:
+                For serial USB drivers, this attribute appears under the
+                extra bus folder "usb-serial" in sysfs; apart from that
+                difference, all descriptions from the entry
+                "/sys/bus/usb/drivers/.../new_id" apply.
+
 What:           /sys/bus/usb/drivers/.../remove_id
 Date:           November 2009
 Contact:        CHENG Renquan <rqcheng@smu.edu.sg>
diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index 81c287fad79d..60cfc2531f1f 100644
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -2632,6 +2632,10 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
                         [USB] Start with the old device initialization
                         scheme (default 0 = off).
 
+        usbcore.usbfs_memory_mb=
+                        [USB] Memory limit (in MB) for buffers allocated by
+                        usbfs (default = 16, 0 = max = 2047).
+
         usbcore.use_both_schemes=
                         [USB] Try the other device initialization scheme
                         if the first one fails (default 1 = enabled).