| Jiri Kosina | 177900e | 2011-02-17 15:12:45 +0100 | [diff] [blame] | 1 | /* |
| 2 | * HID driver for Keytouch devices not fully compliant with HID standard |
| 3 | * |
| 4 | * Copyright (c) 2011 Jiri Kosina |
| 5 | */ |
| 6 | |
| 7 | /* |
| 8 | * This program is free software; you can redistribute it and/or modify it |
| 9 | * under the terms of the GNU General Public License as published by the Free |
| 10 | * Software Foundation; either version 2 of the License, or (at your option) |
| 11 | * any later version. |
| 12 | */ |
| 13 | |
| 14 | #include <linux/device.h> |
| 15 | #include <linux/hid.h> |
| 16 | #include <linux/module.h> |
| 17 | |
| 18 | #include "hid-ids.h" |
| 19 | |
| 20 | /* Replace the broken report descriptor of this device with rather |
| 21 | * a default one */ |
| 22 | static __u8 keytouch_fixed_rdesc[] = { |
| 23 | 0x05, 0x01, 0x09, 0x06, 0xa1, 0x01, 0x05, 0x07, 0x19, 0xe0, 0x29, 0xe7, 0x15, |
| 24 | 0x00, 0x25, 0x01, 0x75, 0x01, 0x95, 0x08, 0x81, 0x02, 0x95, 0x01, 0x75, 0x08, |
| 25 | 0x81, 0x01, 0x95, 0x03, 0x75, 0x01, 0x05, 0x08, 0x19, 0x01, 0x29, 0x03, 0x91, |
| 26 | 0x02, 0x95, 0x05, 0x75, 0x01, 0x91, 0x01, 0x95, 0x06, 0x75, 0x08, 0x15, 0x00, |
| 27 | 0x26, 0xff, 0x00, 0x05, 0x07, 0x19, 0x00, 0x2a, 0xff, 0x00, 0x81, 0x00, 0xc0 |
| 28 | }; |
| 29 | |
| 30 | static __u8 *keytouch_report_fixup(struct hid_device *hdev, __u8 *rdesc, |
| 31 | unsigned int *rsize) |
| 32 | { |
| 33 | hid_info(hdev, "fixing up Keytouch IEC report descriptor\n"); |
| 34 | |
| 35 | rdesc = keytouch_fixed_rdesc; |
| 36 | *rsize = sizeof(keytouch_fixed_rdesc); |
| 37 | |
| 38 | return rdesc; |
| 39 | } |
| 40 | |
| 41 | static const struct hid_device_id keytouch_devices[] = { |
| 42 | { HID_USB_DEVICE(USB_VENDOR_ID_KEYTOUCH, USB_DEVICE_ID_KEYTOUCH_IEC) }, |
| 43 | { } |
| 44 | }; |
| 45 | MODULE_DEVICE_TABLE(hid, keytouch_devices); |
| 46 | |
| 47 | static struct hid_driver keytouch_driver = { |
| 48 | .name = "keytouch", |
| 49 | .id_table = keytouch_devices, |
| 50 | .report_fixup = keytouch_report_fixup, |
| 51 | }; |
| 52 | |
| 53 | static int __init keytouch_init(void) |
| 54 | { |
| 55 | return hid_register_driver(&keytouch_driver); |
| 56 | } |
| 57 | |
| 58 | static void __exit keytouch_exit(void) |
| 59 | { |
| 60 | hid_unregister_driver(&keytouch_driver); |
| 61 | } |
| 62 | |
| 63 | module_init(keytouch_init); |
| 64 | module_exit(keytouch_exit); |
| 65 | MODULE_LICENSE("GPL"); |
| 66 | MODULE_AUTHOR("Jiri Kosina"); |