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07e88a35dc
These adapters allow pre-USB Sun keyboards to be connected to USB-only machines, but include the wrong maximum keycode in their report descriptor, making most of the keys present on Sun keyboards but not 101-key PC keyboards nonfunctional. This patch implements a quirk that overrides the maximum keycode in the report descriptor. Signed-off-by: Jonathan Tomer <jktomer@google.com> Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
59 lines
1.7 KiB
C
59 lines
1.7 KiB
C
/*
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* USB HID quirks support for Network Technologies, Inc. "USB-SUN" USB
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* adapter for pre-USB Sun keyboards
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*
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* Copyright (c) 2011 Google, Inc.
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*
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* Based on HID apple driver by
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* Copyright (c) 1999 Andreas Gal
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* Copyright (c) 2000-2005 Vojtech Pavlik <vojtech@suse.cz>
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* Copyright (c) 2005 Michael Haboustak <mike-@cinci.rr.com> for Concept2, Inc
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* Copyright (c) 2006-2007 Jiri Kosina
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* Copyright (c) 2008 Jiri Slaby <jirislaby@gmail.com>
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*/
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/*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the Free
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* Software Foundation; either version 2 of the License, or (at your option)
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* any later version.
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*/
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#include <linux/device.h>
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#include <linux/input.h>
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#include <linux/hid.h>
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#include <linux/module.h>
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#include "hid-ids.h"
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MODULE_AUTHOR("Jonathan Klabunde Tomer <jktomer@google.com>");
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MODULE_DESCRIPTION("HID driver for Network Technologies USB-SUN keyboard adapter");
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/*
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* NTI Sun keyboard adapter has wrong logical maximum in report descriptor
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*/
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static __u8 *nti_usbsun_report_fixup(struct hid_device *hdev, __u8 *rdesc,
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unsigned int *rsize)
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{
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if (*rsize >= 60 && rdesc[53] == 0x65 && rdesc[59] == 0x65) {
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hid_info(hdev, "fixing up NTI USB-SUN keyboard adapter report descriptor\n");
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rdesc[53] = rdesc[59] = 0xe7;
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}
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return rdesc;
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}
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static const struct hid_device_id nti_devices[] = {
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{ HID_USB_DEVICE(USB_VENDOR_ID_NTI, USB_DEVICE_ID_USB_SUN) },
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{ }
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};
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MODULE_DEVICE_TABLE(hid, nti_devices);
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static struct hid_driver nti_driver = {
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.name = "nti",
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.id_table = nti_devices,
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.report_fixup = nti_usbsun_report_fixup
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};
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module_hid_driver(nti_driver);
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MODULE_LICENSE("GPL");
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