diff options
Diffstat (limited to 'drivers/hid/hid-ortek.c')
| -rw-r--r-- | drivers/hid/hid-ortek.c | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/drivers/hid/hid-ortek.c b/drivers/hid/hid-ortek.c new file mode 100644 index 000000000..6620f15fe --- /dev/null +++ b/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"); |