HID: add support for Kye/Genius Ergo 525V
This device sends several buttons in a separate field, which is
wrongly described in the report descriptor. Fix it in the following
way:
- change led usage page to button
- report size 8 count 1 becomes report size 1 count 8
- the button usage range changed to 4-7 (the mouse has three buttons in
a different field already).
Reported-by: Tomas Hanak <tomas.hanak@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
diff --git a/drivers/hid/hid-kye.c b/drivers/hid/hid-kye.c
new file mode 100644
index 0000000..ea7f412
--- /dev/null
+++ b/drivers/hid/hid-kye.c
@@ -0,0 +1,71 @@
+/*
+ * HID driver for Kye/Genius devices not fully compliant with HID standard
+ *
+ * Copyright (c) 2009 Jiri Kosina
+ * Copyright (c) 2009 Tomas Hanak
+ */
+
+/*
+ * 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"
+
+/* the fixups that need to be done:
+ * - change led usage page to button for extra buttons
+ * - report size 8 count 1 must be size 1 count 8 for button bitfield
+ * - change the button usage range to 4-7 for the extra buttons
+ */
+static void kye_report_fixup(struct hid_device *hdev, __u8 *rdesc,
+ unsigned int rsize)
+{
+ if (rsize >= 74 &&
+ rdesc[61] == 0x05 && rdesc[62] == 0x08 &&
+ rdesc[63] == 0x19 && rdesc[64] == 0x08 &&
+ rdesc[65] == 0x29 && rdesc[66] == 0x0f &&
+ rdesc[71] == 0x75 && rdesc[72] == 0x08 &&
+ rdesc[73] == 0x95 && rdesc[74] == 0x01) {
+ dev_info(&hdev->dev, "fixing up Kye/Genius Ergo Mouse report "
+ "descriptor\n");
+ rdesc[62] = 0x09;
+ rdesc[64] = 0x04;
+ rdesc[66] = 0x07;
+ rdesc[72] = 0x01;
+ rdesc[74] = 0x08;
+ }
+}
+
+static const struct hid_device_id kye_devices[] = {
+ { HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_ERGO_525V) },
+ { }
+};
+MODULE_DEVICE_TABLE(hid, kye_devices);
+
+static struct hid_driver kye_driver = {
+ .name = "kye",
+ .id_table = kye_devices,
+ .report_fixup = kye_report_fixup,
+};
+
+static int kye_init(void)
+{
+ return hid_register_driver(&kye_driver);
+}
+
+static void kye_exit(void)
+{
+ hid_unregister_driver(&kye_driver);
+}
+
+module_init(kye_init);
+module_exit(kye_exit);
+MODULE_LICENSE("GPL");
+
+HID_COMPAT_LOAD_DRIVER(kye);