cregit-Linux how code gets into the kernel

Release 4.7 drivers/hid/hid-xinmo.c

Directory: drivers/hid
/*
 *  HID driver for Xin-Mo devices, currently only the Dual Arcade controller.
 *  Fixes the negative axis event values (the devices sends -2) to match the
 *  logical axis minimum of the HID report descriptor (the report announces
 *  -1). It is needed because hid-input discards out of bounds values.
 *  (This module is based on "hid-saitek" and "hid-lg".)
 *
 *  Copyright (c) 2013 Olivier Scherler
 */

/*
 * 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 <linux/kernel.h>

#include "hid-ids.h"

/*
 * Fix negative events that are out of bounds.
 */

static int xinmo_event(struct hid_device *hdev, struct hid_field *field, struct hid_usage *usage, __s32 value) { switch (usage->code) { case ABS_X: case ABS_Y: case ABS_Z: case ABS_RX: if (value < -1) { input_event(field->hidinput->input, usage->type, usage->code, -1); return 1; } break; } return 0; }

Contributors

PersonTokensPropCommitsCommitProp
olivier scherlerolivier scherler80100.00%1100.00%
Total80100.00%1100.00%

static const struct hid_device_id xinmo_devices[] = { { HID_USB_DEVICE(USB_VENDOR_ID_XIN_MO, USB_DEVICE_ID_XIN_MO_DUAL_ARCADE) }, { } }; MODULE_DEVICE_TABLE(hid, xinmo_devices); static struct hid_driver xinmo_driver = { .name = "xinmo", .id_table = xinmo_devices, .event = xinmo_event }; module_hid_driver(xinmo_driver); MODULE_LICENSE("GPL");

Overall Contributors

PersonTokensPropCommitsCommitProp
olivier scherlerolivier scherler15598.73%150.00%
wei yongjunwei yongjun21.27%150.00%
Total157100.00%2100.00%
Directory: drivers/hid
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