HID: support for Petalynx Maxter remote control

Petalynx Maxter remote control [1] 0x18b1/0x0037 emits 0xfa and 0xfc from
consumer page (reserved in HUT 1.12) for back and more keys. It also emits
a few usages from LOGIVENDOR page, which need adding.

Also, this device has broken report descriptor - the reported maximum is too
low - it doesn't contain the range for 'back' and 'more' keys, so we need to
bump it up before the report descriptor is being parsed.

Besides all this, it also requires NOGET quirk.

This patch does so.

[1] http://www.elmak.pl/index.php?option=com_phpshop&page=shop.browse&category_id=14&ext=opis&lang=en

Signed-off-by: Jiri Kosina <jkosina@suse.cz>

1 files changed, 18 insertions, 0 deletions

diff --git a/drivers/hid/usbhid/hid-core.c b/drivers/hid/usbhid/hid-core.c
index 093abb5c9879..ef7b881aab3a 100644
--- a/drivers/hid/usbhid/hid-core.c
+++ b/drivers/hid/usbhid/hid-core.c
@@ -688,6 +688,21 @@ static void hid_fixup_logitech_descriptor(unsigned char *rdesc, int rsize)
         }
 }
 
+/* Petalynx Maxter Remote has maximum for consumer page set too low */
+static void hid_fixup_petalynx_descriptor(unsigned char *rdesc, int rsize)
+{
+        if (rsize >= 60 && rdesc[39] == 0x2a
+                        && rdesc[40] == 0xf5
+                        && rdesc[41] == 0x00
+                        && rdesc[59] == 0x26
+                        && rdesc[60] == 0xf9
+                        && rdesc[61] == 0x00) {
+                info("Fixing up Petalynx Maxter Remote report descriptor");
+                rdesc[60] = 0xfa;
+                rdesc[40] = 0xfa;
+        }
+}
+
 /*
  * Some USB barcode readers from cypress have usage min and usage max in
  * the wrong order
@@ -781,6 +796,9 @@ static struct hid_device *usb_hid_configure(struct usb_interface *intf)
         if (quirks & HID_QUIRK_SWAPPED_MIN_MAX)
                 hid_fixup_cypress_descriptor(rdesc, rsize);
 
+        if (quirks & HID_QUIRK_PETALYNX_DESCRIPTOR)
+                hid_fixup_petalynx_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++)