cregit-Linux how code gets into the kernel

Release 4.7 drivers/hid/hid-cherry.c

Directory: drivers/hid
/*
 *  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
 *  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.
 */

static __u8 *ch_report_fixup(struct hid_device *hdev, __u8 *rdesc, unsigned int *rsize) { if (*rsize >= 18 && rdesc[11] == 0x3c && rdesc[12] == 0x02) { hid_info(hdev, "fixing up Cherry Cymotion report descriptor\n"); rdesc[11] = rdesc[16] = 0xff; rdesc[12] = rdesc[17] = 0x03; } return rdesc; }

Contributors

PersonTokensPropCommitsCommitProp
jiri slabyjiri slaby6887.18%125.00%
nikolai kondrashovnikolai kondrashov78.97%125.00%
joe perchesjoe perches22.56%125.00%
jiri kosinajiri kosina11.28%125.00%
Total78100.00%4100.00%

#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; }

Contributors

PersonTokensPropCommitsCommitProp
jiri slabyjiri slaby95100.00%1100.00%
Total95100.00%1100.00%

static const struct hid_device_id ch_devices[] = { { HID_USB_DEVICE(USB_VENDOR_ID_CHERRY, USB_DEVICE_ID_CHERRY_CYMOTION) }, { HID_USB_DEVICE(USB_VENDOR_ID_CHERRY, USB_DEVICE_ID_CHERRY_CYMOTION_SOLAR) }, { } }; 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, }; module_hid_driver(ch_driver); MODULE_LICENSE("GPL");

Overall Contributors

PersonTokensPropCommitsCommitProp
jiri slabyjiri slaby24691.79%114.29%
raphael doursenaudraphael doursenaud93.36%114.29%
nikolai kondrashovnikolai kondrashov72.61%114.29%
jiri kosinajiri kosina20.75%228.57%
joe perchesjoe perches20.75%114.29%
h hartley sweetenh hartley sweeten20.75%114.29%
Total268100.00%7100.00%
Directory: drivers/hid
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