1 files changed, 22 insertions, 1 deletions

diff --git a/drivers/usb/input/hid-core.c b/drivers/usb/input/hid-core.c
index 378af7ae2bfb..5d5221324e63 100644
--- a/drivers/usb/input/hid-core.c
+++ b/drivers/usb/input/hid-core.c
@@ -4,7 +4,7 @@
  *  Copyright (c) 1999 Andreas Gal
  *  Copyright (c) 2000-2005 Vojtech Pavlik <vojtech@suse.cz>
  *  Copyright (c) 2005 Michael Haboustak <mike-@cinci.rr.com> for Concept2, Inc
- *  Copyright (c) 2006 Jiri Kosina
+ *  Copyright (c) 2006-2007 Jiri Kosina
  */
 
 /*
@@ -755,6 +755,7 @@ void usbhid_init_reports(struct hid_device *hid)
 
 #define USB_VENDOR_ID_LOGITECH          0x046d
 #define USB_DEVICE_ID_LOGITECH_USB_RECEIVER     0xc101
+#define USB_DEVICE_ID_LOGITECH_USB_RECEIVER_2   0xc517
 
 #define USB_VENDOR_ID_IMATION           0x0718
 #define USB_DEVICE_ID_DISC_STAKKA       0xd000
@@ -941,6 +942,7 @@ static const struct hid_blacklist {
         { USB_VENDOR_ID_TURBOX, USB_DEVICE_ID_TURBOX_KEYBOARD, HID_QUIRK_NOGET },
 
         { USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_USB_RECEIVER, HID_QUIRK_BAD_RELATIVE_KEYS },
+        { USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_USB_RECEIVER_2, HID_QUIRK_LOGITECH_S510_DESCRIPTOR },
 
         { USB_VENDOR_ID_PANTHERLORD, USB_DEVICE_ID_PANTHERLORD_TWIN_USB_JOYSTICK, HID_QUIRK_MULTI_INPUT | HID_QUIRK_SKIP_OUTPUT_REPORTS },
 
@@ -1038,6 +1040,22 @@ static void hid_fixup_sony_ps3_controller(struct usb_device *dev, int ifnum)
         kfree(buf);
 }
 
+/*
+ * Logitech S510 keyboard sends in report #3 keys which are far
+ * above the logical maximum described in descriptor. This extends
+ * the original value of 0x28c of logical maximum to 0x104d
+ */
+static void hid_fixup_s510_descriptor(unsigned char *rdesc, int rsize)
+{
+        if (rsize >= 90 && rdesc[83] == 0x26
+                        && rdesc[84] == 0x8c
+                        && rdesc[85] == 0x02) {
+                info("Fixing up Logitech S510 report descriptor");
+                rdesc[84] = rdesc[89] = 0x4d;
+                rdesc[85] = rdesc[90] = 0x10;
+        }
+}
+
 static struct hid_device *usb_hid_configure(struct usb_interface *intf)
 {
         struct usb_host_interface *interface = intf->cur_altsetting;
@@ -1106,6 +1124,9 @@ static struct hid_device *usb_hid_configure(struct usb_interface *intf)
         if ((quirks & HID_QUIRK_CYMOTION))
                 hid_fixup_cymotion_descriptor(rdesc, rsize);
 
+        if (quirks & HID_QUIRK_LOGITECH_S510_DESCRIPTOR)
+                hid_fixup_s510_descriptor(rdesc, rsize);
+
 #ifdef CONFIG_HID_DEBUG
         printk(KERN_DEBUG __FILE__ ": report descriptor (size %u, read %d) = ", rsize, n);
         for (n = 0; n < rsize; n++)