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(I'm so sorry!) Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel os linux
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123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */#ifndef __UHID_H_#define __UHID_H_
/* * User-space I/O driver support for HID subsystem * Copyright (c) 2012 David Herrmann */
/* * 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. */
/* * Public header for user-space communication. We try to keep every structure * aligned but to be safe we also use __attribute__((__packed__)). Therefore, * the communication should be ABI compatible even between architectures. */
#include <linux/input.h>#include <linux/types.h>#include <linux/hid.h>
enum uhid_event_type { __UHID_LEGACY_CREATE, UHID_DESTROY, UHID_START, UHID_STOP, UHID_OPEN, UHID_CLOSE, UHID_OUTPUT, __UHID_LEGACY_OUTPUT_EV, __UHID_LEGACY_INPUT, UHID_GET_REPORT, UHID_GET_REPORT_REPLY, UHID_CREATE2, UHID_INPUT2, UHID_SET_REPORT, UHID_SET_REPORT_REPLY,};
struct uhid_create2_req { __u8 name[128]; __u8 phys[64]; __u8 uniq[64]; __u16 rd_size; __u16 bus; __u32 vendor; __u32 product; __u32 version; __u32 country; __u8 rd_data[HID_MAX_DESCRIPTOR_SIZE];} __attribute__((__packed__));
enum uhid_dev_flag { UHID_DEV_NUMBERED_FEATURE_REPORTS = (1ULL << 0), UHID_DEV_NUMBERED_OUTPUT_REPORTS = (1ULL << 1), UHID_DEV_NUMBERED_INPUT_REPORTS = (1ULL << 2),};
struct uhid_start_req { __u64 dev_flags;};
#define UHID_DATA_MAX 4096
enum uhid_report_type { UHID_FEATURE_REPORT, UHID_OUTPUT_REPORT, UHID_INPUT_REPORT,};
struct uhid_input2_req { __u16 size; __u8 data[UHID_DATA_MAX];} __attribute__((__packed__));
struct uhid_output_req { __u8 data[UHID_DATA_MAX]; __u16 size; __u8 rtype;} __attribute__((__packed__));
struct uhid_get_report_req { __u32 id; __u8 rnum; __u8 rtype;} __attribute__((__packed__));
struct uhid_get_report_reply_req { __u32 id; __u16 err; __u16 size; __u8 data[UHID_DATA_MAX];} __attribute__((__packed__));
struct uhid_set_report_req { __u32 id; __u8 rnum; __u8 rtype; __u16 size; __u8 data[UHID_DATA_MAX];} __attribute__((__packed__));
struct uhid_set_report_reply_req { __u32 id; __u16 err;} __attribute__((__packed__));
/* * Compat Layer * All these commands and requests are obsolete. You should avoid using them in * new code. We support them for backwards-compatibility, but you might not get * access to new feature in case you use them. */
enum uhid_legacy_event_type { UHID_CREATE = __UHID_LEGACY_CREATE, UHID_OUTPUT_EV = __UHID_LEGACY_OUTPUT_EV, UHID_INPUT = __UHID_LEGACY_INPUT, UHID_FEATURE = UHID_GET_REPORT, UHID_FEATURE_ANSWER = UHID_GET_REPORT_REPLY,};
/* Obsolete! Use UHID_CREATE2. */struct uhid_create_req { __u8 name[128]; __u8 phys[64]; __u8 uniq[64]; __u8 __user *rd_data; __u16 rd_size;
__u16 bus; __u32 vendor; __u32 product; __u32 version; __u32 country;} __attribute__((__packed__));
/* Obsolete! Use UHID_INPUT2. */struct uhid_input_req { __u8 data[UHID_DATA_MAX]; __u16 size;} __attribute__((__packed__));
/* Obsolete! Kernel uses UHID_OUTPUT exclusively now. */struct uhid_output_ev_req { __u16 type; __u16 code; __s32 value;} __attribute__((__packed__));
/* Obsolete! Kernel uses ABI compatible UHID_GET_REPORT. */struct uhid_feature_req { __u32 id; __u8 rnum; __u8 rtype;} __attribute__((__packed__));
/* Obsolete! Use ABI compatible UHID_GET_REPORT_REPLY. */struct uhid_feature_answer_req { __u32 id; __u16 err; __u16 size; __u8 data[UHID_DATA_MAX];} __attribute__((__packed__));
/* * UHID Events * All UHID events from and to the kernel are encoded as "struct uhid_event". * The "type" field contains a UHID_* type identifier. All payload depends on * that type and can be accessed via ev->u.XYZ accordingly. * If user-space writes short events, they're extended with 0s by the kernel. If * the kernel writes short events, user-space shall extend them with 0s. */
struct uhid_event { __u32 type;
union { struct uhid_create_req create; struct uhid_input_req input; struct uhid_output_req output; struct uhid_output_ev_req output_ev; struct uhid_feature_req feature; struct uhid_get_report_req get_report; struct uhid_feature_answer_req feature_answer; struct uhid_get_report_reply_req get_report_reply; struct uhid_create2_req create2; struct uhid_input2_req input2; struct uhid_set_report_req set_report; struct uhid_set_report_reply_req set_report_reply; struct uhid_start_req start; } u;} __attribute__((__packed__));
#endif /* __UHID_H_ */