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-rw-r--r--kernel/drivers/hid/hid-ortek.c55
1 files changed, 55 insertions, 0 deletions
diff --git a/kernel/drivers/hid/hid-ortek.c b/kernel/drivers/hid/hid-ortek.c
new file mode 100644
index 000000000..6620f15fe
--- /dev/null
+++ b/kernel/drivers/hid/hid-ortek.c
@@ -0,0 +1,55 @@
+/*
+ * HID driver for various devices which are apparently based on the same chipset
+ * from certain vendor which produces chips that contain wrong LogicalMaximum
+ * value in their HID report descriptor. Currently supported devices are:
+ *
+ * Ortek PKB-1700
+ * Ortek WKB-2000
+ * Skycable wireless presenter
+ *
+ * Copyright (c) 2010 Johnathon Harris <jmharris@gmail.com>
+ * Copyright (c) 2011 Jiri Kosina
+ */
+
+/*
+ * 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"
+
+static __u8 *ortek_report_fixup(struct hid_device *hdev, __u8 *rdesc,
+ unsigned int *rsize)
+{
+ if (*rsize >= 56 && rdesc[54] == 0x25 && rdesc[55] == 0x01) {
+ hid_info(hdev, "Fixing up logical minimum in report descriptor (Ortek)\n");
+ rdesc[55] = 0x92;
+ } else if (*rsize >= 54 && rdesc[52] == 0x25 && rdesc[53] == 0x01) {
+ hid_info(hdev, "Fixing up logical minimum in report descriptor (Skycable)\n");
+ rdesc[53] = 0x65;
+ }
+ return rdesc;
+}
+
+static const struct hid_device_id ortek_devices[] = {
+ { HID_USB_DEVICE(USB_VENDOR_ID_ORTEK, USB_DEVICE_ID_ORTEK_PKB1700) },
+ { HID_USB_DEVICE(USB_VENDOR_ID_ORTEK, USB_DEVICE_ID_ORTEK_WKB2000) },
+ { HID_USB_DEVICE(USB_VENDOR_ID_SKYCABLE, USB_DEVICE_ID_SKYCABLE_WIRELESS_PRESENTER) },
+ { }
+};
+MODULE_DEVICE_TABLE(hid, ortek_devices);
+
+static struct hid_driver ortek_driver = {
+ .name = "ortek",
+ .id_table = ortek_devices,
+ .report_fixup = ortek_report_fixup
+};
+module_hid_driver(ortek_driver);
+
+MODULE_LICENSE("GPL");