[PATCH] hid kernel module for wireless remote LC Power model RC1000MCE

[chris schlund <chrisschlund@gmx.de>]

Hi,

I bought a remote control LC Power RC1000MCE (usb rf keyboard). Some 
keys were not working. Therefore I took the hid-topseed kernel module 
copied it and prepared it as a new kernel module hid-lcpower which 
provides the correct keymapping for this remote control.
I tested it on the 2.6.32 kernel.
I modified it to compile with the kernel version 2.6.37 (untested).

Sorry If I made some formal errors in here. This is my first patch and I 
am not used to this process.

Thanks
Chris


  39$ cat lc-power.patch
diff -urN linux-2.6.37/drivers/hid/hid-core.c linux/drivers/hid/hid-core.c
--- linux-2.6.37/drivers/hid/hid-core.c 2011-01-05 01:50:19.000000000 +0100
+++ linux/drivers/hid/hid-core.c        2011-01-24 17:01:00.000000000 +0100
@@ -1312,6 +1312,7 @@
         { HID_USB_DEVICE(USB_VENDOR_ID_KENSINGTON, 
USB_DEVICE_ID_KS_SLIMBLADE) },
         { HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_ERGO_525V) },
         { HID_USB_DEVICE(USB_VENDOR_ID_LABTEC, 
USB_DEVICE_ID_LABTEC_WIRELESS_KEYBOARD) },
+       { HID_USB_DEVICE(USB_VENDOR_ID_LCPOWER, 
USB_DEVICE_ID_LCPOWER_LC1000 ) },
         { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, 
USB_DEVICE_ID_MX3000_RECEIVER) },
         { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, 
USB_DEVICE_ID_S510_RECEIVER) },
         { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, 
USB_DEVICE_ID_S510_RECEIVER_2) },
diff -urN linux-2.6.37/drivers/hid/hid-ids.h linux/drivers/hid/hid-ids.h
--- linux-2.6.37/drivers/hid/hid-ids.h  2011-01-05 01:50:19.000000000 +0100
+++ linux/drivers/hid/hid-ids.h 2011-01-24 17:01:00.000000000 +0100
@@ -330,6 +330,9 @@
  #define USB_VENDOR_ID_LABTEC           0x1020
  #define USB_DEVICE_ID_LABTEC_WIRELESS_KEYBOARD 0x0006

+#define USB_VENDOR_ID_LCPOWER          0x1241
+#define USB_DEVICE_ID_LCPOWER_LC1000   0xf767
+
  #define USB_VENDOR_ID_LD               0x0f11
  #define USB_DEVICE_ID_LD_CASSY         0x1000
  #define USB_DEVICE_ID_LD_POCKETCASSY   0x1010
diff -urN linux-2.6.37/drivers/hid/hid-lcpower.c 
linux/drivers/hid/hid-lcpower.c
--- linux-2.6.37/drivers/hid/hid-lcpower.c      1970-01-01 
01:00:00.000000000 +0100
+++ linux/drivers/hid/hid-lcpower.c     2011-01-24 17:01:00.000000000 +0100
@@ -0,0 +1,70 @@
+/*
+ *  HID driver for LC Power Model RC1000MCE
+ *
+ *  Copyright (c) 2011 Chris Schlund
+ *  based on hid-topseed module
+ */
+
+/*
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by 
the Free
+ * Software Foundation; either version 2 of the License, or (at your 
option)
+ * any later version.
+ */
+
+#include <linux/device.h>
+#include <linux/hid.h>
+#include <linux/module.h>
+
+#include "hid-ids.h"
+
+#define ts_map_key_clear(c)    hid_map_usage_clear(hi, usage, bit, max, \
+                                       EV_KEY, (c))
+static int ts_input_mapping(struct hid_device *hdev, struct hid_input *hi,
+               struct hid_field *field, struct hid_usage *usage,
+               unsigned long **bit, int *max)
+{
+       if ((usage->hid & HID_USAGE_PAGE) != 0x0ffbc0000)
+               return 0;
+
+       switch (usage->hid & HID_USAGE) {
+        case 0x046: ts_map_key_clear(KEY_YELLOW);         break;
+        case 0x047: ts_map_key_clear(KEY_GREEN);          break;
+        case 0x049: ts_map_key_clear(KEY_RED);            break;
+        case 0x04a: ts_map_key_clear(KEY_BLUE);           break;
+        case 0x00d: ts_map_key_clear(KEY_HOME);           break;
+        case 0x025: ts_map_key_clear(KEY_TV);             break;
+        case 0x048: ts_map_key_clear(KEY_VCR);            break;
+        case 0x024: ts_map_key_clear(KEY_MENU);           break;
+        default:
+               return 0;
+       }
+
+       return 1;
+}
+
+static const struct hid_device_id ts_devices[] = {
+       { HID_USB_DEVICE( USB_VENDOR_ID_LCPOWER, 
USB_DEVICE_ID_LCPOWER_LC1000) },
+       { }
+};
+MODULE_DEVICE_TABLE(hid, ts_devices);
+
+static struct hid_driver ts_driver = {
+       .name = "LC RC1000MCE",
+       .id_table = ts_devices,
+       .input_mapping = ts_input_mapping,
+};
+
+static int __init ts_init(void)
+{
+       return hid_register_driver(&ts_driver);
+}
+
+static void __exit ts_exit(void)
+{
+       hid_unregister_driver(&ts_driver);
+}
+
+module_init(ts_init);
+module_exit(ts_exit);
+MODULE_LICENSE("GPL");
diff -urN linux-2.6.37/drivers/hid/Kconfig linux/drivers/hid/Kconfig
--- linux-2.6.37/drivers/hid/Kconfig    2011-01-05 01:50:19.000000000 +0100
+++ linux/drivers/hid/Kconfig   2011-01-24 17:01:00.000000000 +0100
@@ -207,6 +207,13 @@
         ---help---
         Support for Kensington Slimblade Trackball.

+config HID_LCPOWER
+       tristate "LC-Power" if EMBEDDED
+       depends on USB_HID
+       default !EMBEDDED
+       ---help---
+       Support for LC-Power RC1000MCE RF remote control.
+
  config HID_LOGITECH
         tristate "Logitech devices" if EMBEDDED
         depends on USB_HID
diff -urN linux-2.6.37/drivers/hid/Makefile linux/drivers/hid/Makefile
--- linux-2.6.37/drivers/hid/Makefile   2011-01-05 01:50:19.000000000 +0100
+++ linux/drivers/hid/Makefile  2011-01-24 17:01:00.000000000 +0100
@@ -41,6 +41,7 @@
  obj-$(CONFIG_HID_GYRATION)     += hid-gyration.o
  obj-$(CONFIG_HID_KENSINGTON)   += hid-kensington.o
  obj-$(CONFIG_HID_KYE)          += hid-kye.o
+obj-$(CONFIG_HID_LCPOWER)      += hid-lcpower.o
  obj-$(CONFIG_HID_LOGITECH)     += hid-logitech.o
  obj-$(CONFIG_HID_MAGICMOUSE)   += hid-magicmouse.o
  obj-$(CONFIG_HID_MICROSOFT)    += hid-microsoft.o