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drivers/hid/hid-cherry.c
2.05 KB
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/* * HID driver for some cherry "special" devices * * Copyright (c) 1999 Andreas Gal * Copyright (c) 2000-2005 Vojtech Pavlik <vojtech@suse.cz> * Copyright (c) 2005 Michael Haboustak <mike-@cinci.rr.com> for Concept2, Inc * Copyright (c) 2006-2007 Jiri Kosina |
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* Copyright (c) 2008 Jiri Slaby */ /* * 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" /* * Cherry Cymotion keyboard have an invalid HID report descriptor, * that needs fixing before we can parse it. */ |
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static __u8 *ch_report_fixup(struct hid_device *hdev, __u8 *rdesc, unsigned int *rsize) |
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{ |
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if (*rsize >= 18 && rdesc[11] == 0x3c && rdesc[12] == 0x02) { |
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hid_info(hdev, "fixing up Cherry Cymotion report descriptor "); |
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rdesc[11] = rdesc[16] = 0xff; rdesc[12] = rdesc[17] = 0x03; } |
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return rdesc; |
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} #define ch_map_key_clear(c) hid_map_usage_clear(hi, usage, bit, max, \ EV_KEY, (c)) static int ch_input_mapping(struct hid_device *hdev, struct hid_input *hi, struct hid_field *field, struct hid_usage *usage, unsigned long **bit, int *max) { if ((usage->hid & HID_USAGE_PAGE) != HID_UP_CONSUMER) return 0; switch (usage->hid & HID_USAGE) { case 0x301: ch_map_key_clear(KEY_PROG1); break; case 0x302: ch_map_key_clear(KEY_PROG2); break; case 0x303: ch_map_key_clear(KEY_PROG3); break; default: return 0; } return 1; } static const struct hid_device_id ch_devices[] = { { HID_USB_DEVICE(USB_VENDOR_ID_CHERRY, USB_DEVICE_ID_CHERRY_CYMOTION) }, |
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{ HID_USB_DEVICE(USB_VENDOR_ID_CHERRY, USB_DEVICE_ID_CHERRY_CYMOTION_SOLAR) }, |
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{ } }; MODULE_DEVICE_TABLE(hid, ch_devices); static struct hid_driver ch_driver = { .name = "cherry", .id_table = ch_devices, .report_fixup = ch_report_fixup, .input_mapping = ch_input_mapping, }; |
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module_hid_driver(ch_driver); |
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MODULE_LICENSE("GPL"); |